Question
770 metres long train crosses a man who is moving in the
same direction with a certain speed, in 35 seconds. If the same train can cross a tree in 22 seconds with the same speed, then find the speed of the man.Solution
Speed of train = 770/22 = 35 m/sec Let the speed of the man be βsβ m/sec Relative speed of the train = (35 β s) m/sec According to the question, (35 β s) = 770/35 Or, s = 35 β 22 = 13 Therefore, speed of the man = 13 m/sec
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