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00:26:4215 days.
00:26:43So you tell me, there are only two people, so tell me how long will they finish the work
00:26:49together?
00:26:50Okay, tell me.
00:26:51Tell me brother, how long will they finish the work together?
00:26:54You will say here, sir, see, we can do it in any way, if we want, we can take LCM here,
00:27:07like 20 and 15 LCM is 60, so 20 is 3 times, 15 is 4 times.
00:27:14So what will happen here, if we see the time, how many days are they finishing the work
00:27:20together?
00:27:21So the time is equal to work upon efficiency, what will happen to us, it will be work, and
00:27:26what will happen here, it will be efficiency, 3 times 4, my brother, it will be 7.
00:27:31What will happen to us in so many days, it will be complete.
00:27:35If you want to apply the formula, then apply the formula, and if you want to make it from
00:27:39the basics, then make it from the basics.
00:27:41This is our concept.
00:27:42Okay, come on, let's talk about the next question, and let's see what is said in question number
00:27:481, read a little.
00:27:49So in question number 1, it is said that if Arun does so much work in 12 days, read here
00:27:56that if Arun can complete, it is a slightly different question, 2 by 3 of a work in 12
00:28:01days, in how many days can he complete so much of the same work?
00:28:04Okay, now this question came in front of you, it came a little unique, and this question
00:28:08was for your CPU.
00:28:09Okay, where it is said that if 2 by 3 is done in 12 days, then here 1 by 6 will be done
00:28:15in how many days?
00:28:16There are many ways to do this question.
00:28:19Okay, so let me tell you the basic method first, after that I will tell you the smart
00:28:23approach.
00:28:24So let's assume what is the basic method here.
00:28:27So the basic method here is to understand, it was said in the question, 2 by 3 work,
00:28:322 by 3 work, and how many days will it take?
00:28:35So my brother will be here for 12 days.
00:28:38So if 2 by 3 work has to be done in 12 days, then first of all, this W work here, take
00:28:43out the value of W, what will be the value of W?
00:28:46So we will multiply this and divide this.
00:28:49So multiply 3 with 12 and divide 2 here.
00:28:54If you divide this, how much will you get?
00:28:5618 days.
00:28:57That is, how many days will the whole work be finished?
00:29:00So in 18 days.
00:29:01How many days will the whole work be finished?
00:29:03In 18 days.
00:29:04Now after that it was said, how many days will our 1 by 6 work be finished?
00:29:09So we will say here that W work has to be done in so many days, so how many days will
00:29:14our 1 by 6 work be done here?
00:29:16So 1 by 6 means whatever your days are, how much of that?
00:29:19So 1 by 6.
00:29:20Like 18 days for the whole work.
00:29:22So suppose tomorrow he says, how much will it take to do half the work?
00:29:26So do half of 18.
00:29:2830 days for the whole work.
00:29:30So how much will it take to do one third?
00:29:32So do one third.
00:29:33In the same way, if 1 by 6 is said here, then what will we do here?
00:29:36So here my brother, we will say here, how many days will it take?
00:29:41So it will take 3 days.
00:29:42Now what did we say that this is our one way?
00:29:45But are we going to solve questions in the paper in this way?
00:29:48So you will say no sir, we will not do it in this way.
00:29:53So what will be our way?
00:29:55Okay, let's tell that.
00:30:10Now let's see the second way here.
00:30:14What was said in the second way?
00:30:16So the second way has been said here.
00:30:18Just check here.
00:30:20The second way that we will apply here, understand what we will apply.
00:30:23If we talk about the second way, then here I have always said that these 12 days have been given.
00:30:29How much is the value of these 12 days?
00:30:31So you will say sir, how much is the value of these 12 days?
00:30:352 by 3.
00:30:37How much is 2 by 3?
00:30:39And what I have to find out, how much is it?
00:30:42So I have to find out 1 by 6, friends.
00:30:45Whatever has been given is of this value and whatever has to be found out is of this value.
00:30:49So what we will do here?
00:30:51We will say, sir, below the bar, first of all, this w will finish the w.
00:30:56So there is no need for this.
00:30:58A bar can never remain below a bar.
00:31:00So where will this 3 go? It will go up, my brother.
00:31:03So we say here, okay, this is 12, so keep it with you.
00:31:06This is our 2, so it will also remain.
00:31:08Just this 3 below will go up.
00:31:12After that, our into is 1 by 6, so it will remain ours.
00:31:15We will finish 6 and 2, 12 by 12.
00:31:17How much will be our answer?
00:31:193 will come, that's it.
00:31:21So whenever, friends, this happens,
00:31:23suppose someone asks you a question,
00:31:25so much work has been done in so many days,
00:31:27so how much work will be done in so many days?
00:31:29So we will find out in this way.
00:31:31For example, let me give you another question on this from my side.
00:31:35Sometimes if the question comes in front of you,
00:31:37that one-third of the work,
00:31:39suppose one-third of the work has been done in 18 days,
00:31:42or let's say two-thirds of the work,
00:31:44leave aside one-third,
00:31:46you see here, two-thirds of the work,
00:31:48here two-thirds of the work has been done in 18 days, my brother.
00:31:52So the question was asked to you,
00:31:54how many days will we have 4 times 7 work?
00:31:57You tell me here.
00:31:59So quickly, friends, tell the answer here.
00:32:02Love you, brother, love you, Nitin Sharma, love you, brother.
00:32:04Okay, so give the answer.
00:32:06How much will be the answer here?
00:32:08Quickly, you have 30 seconds.
00:32:34Tell me, brother, what will be the answer here?
00:32:48You will say here,
00:32:50Sir, look, it's a small thing, you understand about this.
00:32:52What has been given to us in the question?
00:32:54So in the question, we were given that it takes 18 days.
00:32:57But for how many days does it take 18 days?
00:32:59For two-thirds of the work.
00:33:01So it takes two-thirds of the work.
00:33:03And if we want to find out how much,
00:33:05we have to find out 4 times 7 work.
00:33:07So it will be 4 times 7 work.
00:33:09Now, as I have told you here,
00:33:11like this W,
00:33:13what will it do?
00:33:15It will finish it.
00:33:17And this 3 below, where will it go?
00:33:19It will go up.
00:33:21So in the next line, we write here,
00:33:23this 2 will remain,
00:33:25these 3 will go up.
00:33:27So we sent it up.
00:33:29You can cut it here.
00:33:31You cut it here.
00:33:33So how many times can you cut it from 2?
00:33:35Twice.
00:33:37So you multiplied it.
00:33:3918 divided by 3 is 54,
00:33:412 times my brother is 108.
00:33:43So 108 divided by 7,
00:33:45what will happen to us?
00:33:47So the correct answer will be.
00:33:49Okay, don't worry at all.
00:33:51We are not going to run at all.
00:33:53We have run things at a very high speed.
00:33:55You will not get an interesting chapter like time and work.
00:33:57Okay,
00:33:59let's go to question number 2.
00:34:01Let's see what is said.
00:34:03In a factory, Raima completes a work in 15 days,
00:34:05while Joy completes it in 10 days.
00:34:07The factory manager
00:34:09has to finish the work as soon as possible.
00:34:11That's why he orders Joy and Raima
00:34:13to work together.
00:34:15How many days will both of them do together?
00:34:17The sheet you will get,
00:34:19which I will provide you by tomorrow,
00:34:21in that sheet, you will get
00:34:23questions of almost all exams.
00:34:25You will get questions of all years.
00:34:27So you don't have to
00:34:29worry at all.
00:34:31Okay,
00:34:33all exams and latest questions
00:34:35will be there.
00:34:37For example,
00:34:39this is your question of SEGEL 2023.
00:34:41What is said here?
00:34:43Raima completes a work in 15 days,
00:34:45while Joy completes it in 10 days.
00:34:47Raima completes it in 15 days,
00:34:49while Joy completes it in 10 days.
00:34:51We have our formula
00:34:53and our LCA method.
00:34:55We can go from
00:34:57whichever method we want.
00:34:59How many days will they take to complete the work?
00:35:01How many days will they take to complete the work?
00:35:03We will go from our method.
00:35:05We will go from our formula.
00:35:07First of all,
00:35:09if one has 15 and the other has 10,
00:35:11then we multiply both of them.
00:35:13After that,
00:35:15we will add both of them.
00:35:17If you see here,
00:35:19how many times will you subtract from 5?
00:35:21You will subtract from 5 in 3 times.
00:35:23You will subtract from 5 in 2 times.
00:35:25How much will 3 into 2 be?
00:35:27It will be 6.
00:35:29Which is the correct answer?
00:35:31Option number D for Dev Sena.
00:35:33All the students have given the answer
00:35:35before me.
00:35:37Very good students.
00:35:39Let's move to the next question.
00:35:41Let's see the next question.
00:35:43What is the next question?
00:35:45Read it.
00:35:47The next question is
00:35:49a very good question.
00:35:51It is said that
00:35:53one person completes a task in 4 days
00:35:55and another person completes it in 6 days.
00:35:57If both of them work together,
00:35:59how much time will it take to complete it?
00:36:01how much time will it take to complete it?
00:36:03How much time will it take to complete it?
00:36:05A student asked
00:36:07to add UPSI questions.
00:36:09There are not many questions in UPSI.
00:36:11In fact,
00:36:13what is the test of SSE?
00:36:15For example,
00:36:17I have completed 22, 23,
00:36:19and 24 papers.
00:36:21The last paper of UPSI was in 2017.
00:36:23After that, I completed it in 2021.
00:36:25A paper is completed once in 4 years.
00:36:27If a paper is completed once in 4 years,
00:36:29then you have to answer 2 questions
00:36:31at a time.
00:36:33That's why there are not many questions in UPSI.
00:36:35I do my best
00:36:37based on my knowledge.
00:36:39Don't teach me
00:36:41what to study.
00:36:43I will do my best.
00:36:45I will do my best
00:36:47based on my knowledge.
00:36:49I will do my best
00:36:51based on my knowledge.
00:36:53It fits in my mind.
00:36:55You can see the questions of UPSI
00:36:57in the last 8 years of Time and Work.
00:36:59You will find only 2 questions.
00:37:01Why? Because a paper is completed in 4 years.
00:37:03It has been 3 years
00:37:05since a paper was completed in 2021.
00:37:07From where will a person get questions?
00:37:09I do my best based on my knowledge.
00:37:11After I teach you,
00:37:13you will be able to solve
00:37:15all the questions easily.
00:37:17you will be able to solve all the questions easily.
00:37:19You will not face any problem.
00:37:21Let's start.
00:37:23A does the same work in 4 days.
00:37:25B does it in 6 days.
00:37:27What will happen if we do it together?
00:37:29Time taken by A plus B.
00:37:31A plus B means A does the same work in 4 days.
00:37:33B does the same work in 6 days.
00:37:35If you add both,
00:37:37you will get 10.
00:37:39If you divide 2 by 2,
00:37:41you will get 12.
00:37:43If you divide 2 by 2,
00:37:45you will get 2.
00:37:47If you divide 2 by 5,
00:37:49you will get 2.
00:37:512 times 5 is 10.
00:37:53So, 2 plus 2 is 5.
00:37:55So, C is the correct answer.
00:37:57So, C is the correct answer.
00:37:59C is the correct answer.
00:38:01C is the correct answer.
00:38:03Is it clear?
00:38:05Is it clear?
00:38:07I am giving you a class.
00:38:09So, option number C is correct.
00:38:14Let's move on to the next question.
00:38:16Let's see what is said in question number 4.
00:38:18Jason can do a piece of work in 23.4 days.
00:38:22Rafi can do the same work in 39 days.
00:38:25In how many days can duo complete the same work if they work together?
00:38:30A person named J can do a piece of work in how many days.
00:38:34A person named A can do the same work in how many days.
00:38:37In how many days can duo complete the same work if they work together?
00:38:40This question is a little calculative.
00:38:42Now, if someone applies the LCA method,
00:38:44then there will be a fight between you and me.
00:38:46So, why should we apply the LCA method?
00:38:48Why should we take the support of the LCA method?
00:38:50So, we have decided here that
00:38:52we will go with the formula that we have.
00:38:55Write down the time taken by the first person.
00:38:58Write down the time taken by the second person.
00:39:01What we have to do here is
00:39:03we have to multiply both the numbers here.
00:39:05And we have to add both the numbers below.
00:39:07So, if we see,
00:39:09in 23.4 days,
00:39:11if we add 39 days,
00:39:13then there is nothing near it.
00:39:15So, it is 0.
00:39:17If we add 0 in 4 days, it will be 4.
00:39:19If we add 9 in 3 days, it will be 2.
00:39:21If we add 2 in 3 days, it will be 5.
00:39:23If we add 1 in 3 days, it will be 6.
00:39:25This is 62.4 days.
00:39:27So, we have to multiply both the numbers here.
00:39:29We have to add both the numbers here.
00:39:31Now, you have to solve this here.
00:39:33Now, you have to solve this here.
00:39:35So, you will say,
00:39:37this is the decimal place.
00:39:39So, what will happen to this decimal place?
00:39:41It will be finished.
00:39:43After that, if you will cut here,
00:39:45you will say, let's cut from 13.
00:39:4713 will be 4 times 52.
00:39:49And 13 will be 8 times 104.
00:39:51From 13, you will cut 3 times.
00:39:53From 3, you will cut 16 times.
00:39:55Now, you will divide this from 16.
00:39:57So, 1 times 16 is 16.
00:39:597 and 4 is 74.
00:40:017 and 4 is 74.
00:40:03So, 4 times 16 is 64.
00:40:05So, 4 times 16 is 64.
00:40:07Now, we have 64.
00:40:09Now, we have 10 left.
00:40:11So, if we add 10,
00:40:1316 will be 6 times 96.
00:40:1540 will be 14.625.
00:40:1740 will be 14.625.
00:40:19Which option is option B for Bahubali?
00:40:21Which option is option B for Bahubali?
00:40:23You should know how to divide.
00:40:25Here, if you want,
00:40:27I can show you by using digital sum.
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00:42:49Here, I can show you by using digital sum.
00:42:51Here, I can show you by using digital sum.
00:42:53Here, I can show you by using digital sum.
00:42:55Here, I can show you by using digital sum.
00:42:57Here, I can show you by using digital sum.
00:42:59Here, I can show you by using digital sum.
00:43:01Here, I can show you by using digital sum.
00:43:03Here, I can show you by using digital sum.
00:43:05Here, I can show you by using digital sum.
00:43:07Here, I can show you by using digital sum.
00:43:09Here, I can show you by using digital sum.
00:43:11Here, I can show you by using digital sum.
00:43:13Here, I can show you by using digital sum.
00:43:15Here, I can show you by using digital sum.
00:43:17Here, I can show you by using digital sum.
00:43:19Here, I can show you by using digital sum.
00:43:21Here, I can show you by using digital sum.
00:43:23Here, I can show you by using digital sum.
00:43:25Here, I can show you by using digital sum.
00:43:27Here, I can show you by using digital sum.
00:43:29Here, I can show you by using digital sum.
00:43:31Here, I can show you by using digital sum.
00:43:33Here, I can show you by using digital sum.
00:43:35Here, I can show you by using digital sum.
00:43:37Here, I can show you by using digital sum.
00:43:39Here, I can show you by using digital sum.
00:43:41Here, I can show you by using digital sum.
00:43:43Here, I can show you by using digital sum.
00:43:45Here, I can show you by using digital sum.
00:43:47Here, I can show you by using digital sum.
00:43:49Here, I can show you by using digital sum.
00:43:51Here, I can show you by using digital sum.
00:43:53Here, I can show you by using digital sum.
00:43:55Here, I can show you by using digital sum.
00:43:57Here, I can show you by using digital sum.
00:43:59Here, I can show you by using digital sum.
00:44:01Here, I can show you by using digital sum.
00:44:03Here, I can show you by using digital sum.
00:44:05Here, I can show you by using digital sum.
00:44:07Here, I can show you by using digital sum.
00:44:09Here, I can show you by using digital sum.
00:44:11Here, I can show you by using digital sum.
00:44:13Here, I can show you by using digital sum.
00:44:15Here, I can show you by using digital sum.
00:44:17Here, I can show you by using digital sum.
00:44:19Here, I can show you by using digital sum.
00:44:21Here, I can show you by using digital sum.
00:44:23Here, I can show you by using digital sum.
00:44:25Here, I can show you by using digital sum.
00:44:27Here, I can show you by using digital sum.
00:44:29Here, I can show you by using digital sum.
00:44:31Here, I can show you by using digital sum.
00:44:33Here, I can show you by using digital sum.
00:44:35Here, I can show you by using digital sum.
00:44:37Here, I can show you by using digital sum.
00:44:39Here, I can show you by using digital sum.
00:44:41Here, I can show you by using digital sum.
00:44:43Here, I can show you by using digital sum.
00:44:45Here, I can show you by using digital sum.
00:44:47Here, I can show you by using digital sum.
00:44:49Here, I can show you by using digital sum.
00:44:51Here, I can show you by using digital sum.
00:44:53Here, I can show you by using digital sum.
00:44:55Here, I can show you by using digital sum.
00:44:57Here, I can show you by using digital sum.
00:44:59Here, I can show you by using digital sum.
00:45:01Here, I can show you by using digital sum.
00:45:03Here, I can show you by using digital sum.
00:45:05Here, I can show you by using digital sum.
00:45:07Here, I can show you by using digital sum.
00:45:09Here, I can show you by using digital sum.
00:45:11Here, I can show you by using digital sum.
00:45:13Here, I can show you by using digital sum.
00:45:15Here, I can show you by using digital sum.
00:45:17Here, I can show you by using digital sum.
00:45:19Here, I can show you by using digital sum.
00:45:21Here, I can show you by using digital sum.
00:45:23Here, I can show you by using digital sum.
00:45:25Here, I can show you by using digital sum.
00:45:27Here, I can show you by using digital sum.
00:45:29Here, I can show you by using digital sum.
00:45:31Here, I can show you by using digital sum.
00:45:33Here, I can show you by using digital sum.
00:45:35Here, I can show you by using digital sum.
00:45:37Here, I can show you by using digital sum.
00:45:39Here, I can show you by using digital sum.
00:45:41Here, I can show you by using digital sum.
00:45:43Here, I can show you by using digital sum.
00:45:45Here, I can show you by using digital sum.
00:45:47Here, I can show you by using digital sum.
00:45:49Here, I can show you by using digital sum.
00:45:51Here, I can show you by using digital sum.
00:45:53Here, I can show you by using digital sum.
00:45:55Here, I can show you by using digital sum.
00:45:57Here, I can show you by using digital sum.
00:45:59Here, I can show you by using digital sum.
00:46:01Here, I can show you by using digital sum.
00:46:03Here, I can show you by using digital sum.
00:46:05Here, I can show you by using digital sum.
00:46:07Here, I can show you by using digital sum.
00:46:09Here, I can show you by using digital sum.
00:46:11Here, I can show you by using digital sum.
00:46:13Here, I can show you by using digital sum.
00:46:15Here, I can show you by using digital sum.
00:46:17Here, I can show you by using digital sum.
00:46:19Here, I can show you by using digital sum.
00:46:21Here, I can show you by using digital sum.
00:46:23Here, I can show you by using digital sum.
00:46:25Here, I can show you by using digital sum.
00:46:27Here, I can show you by using digital sum.
00:46:29Here, I can show you by using digital sum.
00:46:31Here, I can show you by using digital sum.
00:46:33Here, I can show you by using digital sum.
00:46:35Here, I can show you by using digital sum.
00:46:37Here, I can show you by using digital sum.
00:46:39Here, I can show you by using digital sum.
00:46:41Here, I can show you by using digital sum.
00:46:43Here, I can show you by using digital sum.
00:46:45Here, I can show you by using digital sum.
00:46:47Here, I can show you by using digital sum.
00:46:49Here, I can show you by using digital sum.
00:46:51Here, I can show you by using digital sum.
00:46:53Here, I can show you by using digital sum.
00:46:55Here, I can show you by using digital sum.
00:46:57Here, I can show you by using digital sum.
00:46:59Here, I can show you by using digital sum.
00:47:01Here, I can show you by using digital sum.
00:47:03Here, I can show you by using digital sum.
00:47:05Here, I can show you by using digital sum.
00:47:07Here, I can show you by using digital sum.
00:47:09Here, I can show you by using digital sum.
00:47:11Here, I can show you by using digital sum.
00:47:13Here, I can show you by using digital sum.
00:47:15Here, I can show you by using digital sum.
00:47:17Here, I can show you by using digital sum.
00:47:19Here, I can show you by using digital sum.
00:47:21Here, I can show you by using digital sum.
00:47:23Here, I can show you by using digital sum.
00:47:25Here, I can show you by using digital sum.
00:47:27Here, I can show you by using digital sum.
00:47:29Here, I can show you by using digital sum.
00:47:31Here, I can show you by using digital sum.
00:47:33Here, I can show you by using digital sum.
00:47:35Here, I can show you by using digital sum.
00:47:37Here, I can show you by using digital sum.
00:47:39Here, I can show you by using digital sum.
00:47:41Here, I can show you by using digital sum.
00:47:43Here, I can show you by using digital sum.
00:47:45Here, I can show you by using digital sum.
00:47:47Here, I can show you by using digital sum.
00:47:49Here, I can show you by using digital sum.
00:47:51Here, I can show you by using digital sum.
00:47:53Here, I can show you by using digital sum.
00:47:55Here, I can show you by using digital sum.
00:47:57Here, I can show you by using digital sum.
00:47:59Here, I can show you by using digital sum.
00:48:01Here, I can show you by using digital sum.
00:48:03Here, I can show you by using digital sum.
00:48:05Here, I can show you by using digital sum.
00:48:07Here, I can show you by using digital sum.
00:48:09Here, I can show you by using digital sum.
00:48:11Here, I can show you by using digital sum.
00:48:13Here, I can show you by using digital sum.
00:48:15Here, I can show you by using digital sum.
00:48:17Here, I can show you by using digital sum.
00:48:19Here, I can show you by using digital sum.
00:48:21Here, I can show you by using digital sum.
00:48:23Here, I can show you by using digital sum.
00:48:25Here, I can show you by using digital sum.
00:48:27Here, I can show you by using digital sum.
00:48:29Here, I can show you by using digital sum.
00:48:31Here, I can show you by using digital sum.
00:48:33Here, I can show you by using digital sum.
00:48:35Here, I can show you by using digital sum.
00:48:37Here, I can show you by using digital sum.
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00:48:41Here, I can show you by using digital sum.
00:48:43Here, I can show you by using digital sum.
00:48:45Here, I can show you by using digital sum.
00:48:47Here, I can show you by using digital sum.
00:48:49Here, I can show you by using digital sum.
00:48:51Here, I can show you by using digital sum.
00:48:53Here, I can show you by using digital sum.
00:48:55Here, I can show you by using digital sum.
00:48:57Here, I can show you by using digital sum.
00:48:59Here, I can show you by using digital sum.
00:49:01Here, I can show you by using digital sum.
00:49:03Here, I can show you by using digital sum.
00:49:05Here, I can show you by using digital sum.
00:49:07Here, I can show you by using digital sum.
00:49:09Here, I can show you by using digital sum.
00:49:11Here, I can show you by using digital sum.
00:49:13Here, I can show you by using digital sum.
00:49:15Here, I can show you by using digital sum.
00:49:17Here, I can show you by using digital sum.
00:49:19Here, I can show you by using digital sum.
00:49:21Here, I can show you by using digital sum.
00:49:23Here, I can show you by using digital sum.
00:49:25Here, I can show you by using digital sum.
00:49:27Here, I can show you by using digital sum.
00:49:29Here, I can show you by using digital sum.
00:49:31Here, I can show you by using digital sum.
00:49:33Here, I can show you by using digital sum.
00:49:35Here, I can show you by using digital sum.
00:49:37Here, I can show you by using digital sum.
00:49:39Here, I can show you by using digital sum.
00:49:41Here, I can show you by using digital sum.
00:49:43If they work together to finish the work.
00:49:45For example, in this question examiner cheated a little bit.
00:49:49He did not give you direct information.
00:49:51In This Exam, they defected.
00:49:53He did not Portion to 2 part Quran.
00:49:55He did not said that For example,
00:49:57he a man name K takes how long to finish all works.
00:49:59How dare this!
00:50:01He has arranged the marks that
00:50:03For example,
00:50:05he said that K person takes 3 times 4 days to done work.
00:50:07J person takes 2 times 5 days to done the work.
00:50:09How dare all of you behave!
00:50:11Let me give you an example of this question
00:50:16Suppose in the question it is said that
00:50:21Suppose two-thirds of the work is done in 20 days
00:50:28If a person is doing two-thirds of the work in 20 days
00:50:32Then how many days will it take to do the whole work?
00:50:35This is our question
00:50:37Suppose a person is doing two-thirds of the work in 20 days
00:50:41Then how many days will it take to do the whole work?
00:50:43So I said that if this question is asked, then we will tell
00:50:47So we have two ways of doing it
00:50:50The first way is that we write 2x3w on the left
00:50:55And we write it equal to 20
00:51:00We have to do the whole work
00:51:02Whole work means w
00:51:04We will leave w and send everything else to the right
00:51:07So if it is below, then it will go up
00:51:11If it is above, then it will go down
00:51:14So in such a situation when we do
00:51:16So how much came in front of us? 30 days
00:51:18And w means 30 means
00:51:20How many days will the whole work take?
00:51:23It will take 30 days
00:51:24How many days will the whole work take?
00:51:26It will take 30 days
00:51:27But we will not do this
00:51:29We can also go to a shortcut here
00:51:32And what can we do there?
00:51:34Two-thirds of the work was discussed
00:51:37And it was said that it takes 20 days to do it
00:51:40So I always tell these children
00:51:42See what is given and see what is asked
00:51:46So if you look at it with the rule, you will say
00:51:49Sir, 2 is given as 20
00:51:51So if 2 is given as 20, then how much will 3 be?
00:51:54You tell me yourself
00:51:56If 2 has become 10 times and become 20
00:51:59So what will 3 do here?
00:52:00If you look at the face, you will not see
00:52:02So you will say that 2 has become 10 times of itself
00:52:04So 3 will also become 10 times of itself
00:52:06How much will it make?
00:52:07It will make 30 days
00:52:08How much will our answer be?
00:52:10It will come in 30 days
00:52:11And what will happen to us?
00:52:12Correct answer
00:52:132 is 10 times of itself
00:52:15So 3 is also 10 times of itself
00:52:17So let's see what is said in the question here
00:52:20So here it is said in front of my brother K
00:52:22See what is the case of K
00:52:24So K is doing 3 times 4 work here
00:52:26And how many days is 3 times 4 work doing?
00:52:28In 6 days
00:52:29This is the first question, so I am writing
00:52:31I will not write the rest of the questions here
00:52:34Keep this in mind
00:52:36What is said about J?
00:52:38So J is said to do 2 times 5 work here
00:52:42And how many days does it do?
00:52:444 days
00:52:45So I said it's a lot of fun
00:52:47Now you guys catch it from here
00:52:49And you guys understand from here
00:52:51Like here 3 has doubled itself
00:52:53So it became 6
00:52:54So if 4 also doubles itself
00:52:55So how much will it be?
00:52:568 days
00:52:57Similarly here
00:52:592 has doubled itself
00:53:00So it became 4
00:53:01So 5 has doubled itself
00:53:02So how much will it become?
00:53:0310
00:53:04Ok
00:53:05Now this person does all the work in 8 days
00:53:07This person does all the work in 10 days
00:53:09So how many days will we do together?
00:53:11How many days will we do together?
00:53:13So we have told you in the answer
00:53:15If we have to do together
00:53:17So x into y divided by x plus y
00:53:19So this will be our x
00:53:21This will be our x into y
00:53:23And divided by 10
00:53:25How much will it be?
00:53:2718
00:53:28You divide 2 by 2 in 9 times
00:53:30Divide 2 by 2 in 40 times
00:53:32So here the answer is
00:53:34What will happen in 40 times?
00:53:36It will be 9
00:53:37If you want to divide by this
00:53:39So you divide 40 by 9
00:53:41If you divide 40 by 9
00:53:43So how much will it be in 9 times?
00:53:4536
00:53:46And how much will be left?
00:53:474
00:53:48The number of times it is divided
00:53:50Where will it be here?
00:53:51In the middle
00:53:52Whatever will be left
00:53:531 2 3 4
00:53:54Whatever will be left
00:53:55That will be in the top
00:53:56And whatever is divided
00:53:57That will be in the bottom
00:53:584 right 4
00:53:59But in option number D
00:54:00For Dev Sena
00:54:03Ok
00:54:04How will we get the LCM quickly?
00:54:05Tell me
00:54:06Mr. Banerjee
00:54:07Wait
00:54:08This is the first class
00:54:09Ok
00:54:10We do not teach the child to run suddenly
00:54:12First my brother teaches him to hold his finger and walk
00:54:14When he starts walking
00:54:16Then we teach him to run
00:54:17So this is the first class
00:54:18Be patient
00:54:19Ok
00:54:20In the first class
00:54:21I am telling you little by little
00:54:22That this is not your last class
00:54:23Ok
00:54:24So be patient
00:54:25We will teach you everything
00:54:26How to give a crack
00:54:27How to give a snap
00:54:28Ok
00:54:29We will tell you everything
00:54:35Come
00:54:37Look at the next question
00:54:38What is the question number 8
00:54:39What is said here?
00:54:40Read it
00:54:41Ok
00:54:42So if we talk about question number 8
00:54:44So what is said in the question
00:54:45See
00:54:46A can do 1 by 4 part of the work in 9 days
00:54:49Mr. Monu says
00:54:51You should teach digital sum first
00:54:53You only tell me how to teach
00:54:55What should I teach first
00:54:57What should I teach later
00:54:58Ok
00:54:59If you teach
00:55:00Then you will tell me how to teach
00:55:02Ok
00:55:04You only teach
00:55:06Tell me
00:55:07Digital sum is a calculation method
00:55:10Teaching it is not a big deal
00:55:13The thing here is
00:55:14Ok
00:55:15A person understands it
00:55:17When a lot of his topics are completed
00:55:19If you are starting with arithmetic
00:55:21Then talk about common sense
00:55:22Will you teach syllabus or digital sum
00:55:24Now you are saying
00:55:25No no
00:55:26You teach later
00:55:27First teach me how to get a square
00:55:30The work is over
00:55:32We are gone
00:55:34Ok
00:55:35Read it
00:55:36Read it carefully
00:55:37Don't teach me how to teach
00:55:39Come
00:55:43A does 1 by 4 part of the work in 9 days
00:55:45And B does 2 by 3 part of the work in 28 days
00:55:48If we do it together
00:55:50Then how many days will it take to complete it
00:55:54So
00:55:55If you see here
00:55:56If we do only one thing
00:55:57Then what is said
00:55:581 by 4 part of the work
00:56:00And how many days will it take
00:56:019 days
00:56:03After that
00:56:04Here
00:56:05B is 2 by 3 part of the work
00:56:07Ok
00:56:08B is 2 by 3 part of the work
00:56:10And if we talk about 2 by 3 part
00:56:13Then 2 by 3 part
00:56:14How many days will it take
00:56:1528 days
00:56:16So first of all
00:56:17Let's find out
00:56:18In total work
00:56:19How many days does it take
00:56:22Ok
00:56:23So if we see
00:56:241 part of the work is 9 days
00:56:26So 4 part of the work
00:56:27How many days will it take
00:56:284 part of the work
00:56:2936 days
00:56:30Ok
00:56:31Here 2 is 14 times of itself
00:56:33So it is 28 days
00:56:343 is 14 times of itself
00:56:36So how many days will it take
00:56:3742 days
00:56:38Some work
00:56:39He does it in so many days
00:56:40Some work
00:56:41He does it in so many days
00:56:42So together
00:56:43How many days will it take
00:56:44So if we talk together
00:56:45So we will say here
00:56:46Sir this will become
00:56:47X
00:56:48And this will become
00:56:49Y
00:56:50And this will become
00:56:51X plus Y
00:56:52It will be 78
00:56:54Ok
00:56:55You want to cut here
00:56:57Whatever you want to do
00:56:58You can cut
00:56:59Like you from 6 to my brother
00:57:006 times
00:57:01And you here
00:57:02How many times from 6
00:57:0313 times
00:57:04And here
00:57:05If you feel
00:57:06No, my brother
00:57:07Can't cut
00:57:08So no problem
00:57:096 into 2
00:57:1012
00:57:11My brother
00:57:12So 24
00:57:13How much will it be
00:57:14And below
00:57:1513
00:57:16Below
00:57:1713 is in one option
00:57:18And this is our
00:57:19Correct answer
00:57:21So if you understand
00:57:22So many times
00:57:23Such a question will come
00:57:24In front of you
00:57:25This one-third work
00:57:26Is happening in so many days
00:57:27Two-fifths work
00:57:28Is happening in so many days
00:57:29So together
00:57:30How many days will it take
00:57:31So if any person
00:57:32Does one-third work
00:57:33So you
00:57:34On one-third
00:57:35On two-thirds
00:57:36Don't stay on four-fifths
00:57:37Take out his 100%
00:57:38See
00:57:39His 100%
00:57:40If he does the whole work
00:57:41How many days will it take
00:57:42If he does the whole work
00:57:43How many days will it take
00:57:44If he does the whole work
00:57:45And then
00:57:46You go and
00:57:47Take out the total work
00:57:48Okay
00:57:49Come here
00:57:50Okay
00:57:51Next question
00:57:52You see
00:57:53In the same way
00:57:54Next question
00:57:55Is based on percentage
00:57:56Like
00:57:57A can do 20%
00:57:58Of a job in 7 days
00:57:59B can do 25%
00:58:00Of the job in 7 days
00:58:01If they work alone
00:58:02How much
00:58:03The job
00:58:04Can they complete
00:58:05In 7 days
00:58:06If they work alone
00:58:07Okay
00:58:08If we talk here
00:58:09So A can do 20%
00:58:10In 7 days
00:58:11And B
00:58:12Can do 25%
00:58:13Of the job in 7 days
00:58:14If they work alone
00:58:15How much
00:58:16The job
00:58:17Can they complete
00:58:18In 7 days
00:58:19Okay
00:58:20It is very simple
00:58:21It is very easy
00:58:22It can be done
00:58:23In a second
00:58:24But you
00:58:25Try it
00:58:26By yourself
00:58:27And come
00:58:28Okay
00:58:29In front of you
00:58:30Here is question number 10
00:58:31So we have seen here
00:58:32Note it
00:58:33You
00:58:34Okay
00:58:35So in today's class
00:58:36We have taught up to question number 8
00:58:37After that
00:58:38We will bring you
00:58:39From question number 9
00:58:40Tomorrow
00:58:41So today
00:58:42My attempt
00:58:43Was to
00:58:44Explain
00:58:45Time and work
00:58:46To you
00:58:47To show
00:58:48What is
00:58:49Time and work
00:58:50How it is related
00:58:51Today
00:58:52We have taught
00:58:53Type 1
00:58:54Question based on
00:58:552 variables
00:58:56Where
00:58:57I have not used
00:58:58More than 2 people
00:58:59Okay
00:59:00In tomorrow's class
00:59:01I will give you
00:59:023 variables
00:59:03Where
00:59:043 people
00:59:05Will be used
00:59:06A will come
00:59:07B will come
00:59:08C will come
00:59:09Okay
00:59:10So
00:59:11All these things
00:59:12Will come
00:59:13And we
00:59:14Will learn
00:59:15So note
00:59:16These questions
00:59:17Tomorrow
00:59:18We will tell you
00:59:19From here
00:59:20I will say
00:59:21Only one thing
00:59:22I will tell you
00:59:23Everything
00:59:24In guidance
00:59:25And strategy
00:59:26Class
00:59:27What will be
00:59:28Class timing
00:59:29In how many months
00:59:30Syllabus will be
00:59:31Completed
00:59:32Where will
00:59:33You get
00:59:34PDF
00:59:35Okay
00:59:36So I don't
00:59:37Think
00:59:38That
00:59:39I
00:59:40Want to
00:59:41Say
00:59:42Bad
00:59:43Things
00:59:44To
00:59:45Students
00:59:46I
00:59:47Don't
00:59:48Want to
00:59:49Say
00:59:50Bad
00:59:51Things
00:59:52To
00:59:53Students
00:59:54But
00:59:55If I
00:59:56Come
00:59:57Daily
00:59:58And
00:59:59Ask
01:00:00Your
01:00:01Name
01:00:02What
01:00:03Is
01:00:04Name
01:00:05What
01:00:06Is
01:00:07Name
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01:00:09If
01:00:10I
01:00:11Come
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01:00:14Will
01:00:15Say
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01:00:20I
01:00:21Don't
01:00:22Want to
01:00:23Say
01:00:24Bad
01:00:25Things
01:00:26To
01:00:27Students
01:00:28I
01:00:29Don't
01:00:30Want to
01:00:31Say
01:00:32Bad
01:00:33Things
01:00:34To
01:00:35Students
01:00:36I
01:00:37Don't
01:00:38Want to
01:00:39Say
01:00:40Bad
01:00:41Things
01:00:42To
01:00:43Students
01:00:44I
01:00:45Don't
01:00:46Want to
01:00:47Say
01:00:48Bad
01:00:49Things
01:00:50To
01:00:51Students
01:00:52I
01:00:53Don't
01:00:54Want to
01:00:55Say
01:00:56Bad
01:00:57Things
01:00:58To
01:00:59Students
01:01:00I
01:01:01Don't
01:01:02Want to
01:01:03Say
01:01:04Bad
01:01:05Things
01:01:06To
01:01:07Students
01:01:08I
01:01:09Don't
01:01:10Want to
01:01:11Say
01:01:12Bad
01:01:13Things
01:01:14To
01:01:15Students
01:01:16I
01:01:17Don't
01:01:18Want to
01:01:19Say
01:01:20Bad
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01:01:24I
01:01:25Don't
01:01:26Want to
01:01:27Say
01:01:28Bad
01:01:29Things
01:01:30To
01:01:31Students
01:01:32I
01:01:33Don't
01:01:34Want to
01:01:35Say
01:01:36Bad
01:01:37Things
01:01:38To
01:01:39Students
01:01:40I
01:01:41Don't
01:01:42Want to
01:01:43Say
01:01:44Bad
01:01:45Things
01:01:46To
01:01:47Students
01:01:48I
01:01:49Don't
01:01:50Want to
01:01:51Say
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01:01:56I
01:01:57Don't
01:01:58Want to
01:01:59Say
01:02:00Bad
01:02:01Things
01:02:02To
01:02:03Students
01:02:04I
01:02:05Don't
01:02:06Want to
01:02:07Say
01:02:08Bad
01:02:09Things
01:02:10To
01:02:11Students
01:02:12I
01:02:13Don't
01:02:14Want to
01:02:15Say
01:02:16Bad
01:02:17Things
01:02:18To
01:02:19Students
01:02:20I
01:02:21Don't
01:02:22Want to
01:02:23Say
01:02:24Bad
01:02:25Things
01:02:26To
01:02:27Students
01:02:28I
01:02:29Don't
01:02:30Want to
01:02:31Say
01:02:32Bad