cool way to solve Time and Distance Calculation related Problems Speedily
http://goo.gl/9JPA0m
Learn amazing shortcuts to do fast calculations
Time taken by a train of length / metres to pass a pole or standing man or a signal post is equal to the time taken by the train to cover / metres.
Learn amazing shortcuts to do fast calculations
Time taken by a train of length / metres to pass a pole or standing man or a signal post is equal to the time taken by the train to cover / metres.