Question
Train crosses a bridge which is 250 m long in 25 sec.
Find the time taken by train to cross a man running in opposite direction at speed of 15m/sec. Find the speed of train.Solution
Let the length of the train be ‘l’ meter, speed of train be ‘s’ m/sec and speed of man be ‘m’ m/sec. According to question, => (l + 250)/s = 25 A man running in opposite direction at speed of 15m/sec, => l/(m + s) = 15 The speed of train cannot be determined.
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