ArithmeticA train 160 m long is running with a speed of 50 kmph. In what time will it pass a man who is running at 8 kmph in the same direction in the train is going?

A train 160 m long is running with a speed of 50 kmph. In what time will it pass a man who is running at 8 kmph in the same direction in the train is going?

  1. A

    13.7 sec

  2. B

    21 sec 

  3. C

    23 sec

  4. D

    14 sec 

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    Solution:

    Distance = 160 m

    Relative  speed=S1S2

    =508=42kmph

    =42×518=1059  m/sec

    T=D/S=160×9105=28821=13.7sec

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