Multiple Choice Questions on Train A 600 mts long is running at 80 kmph will take how much time to cross a man sitting in another........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Train A 600 mts long is running at 80 kmph will take how much time to cross a man sitting in another...........

Quantitative Aptitude ( CCS) Problems on trains
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    Train A, 600 mts long is running at 80 kmph will take how much time to cross a man sitting in another train which is 400 mtres long, running at 64 kmph in the opposite direction?

    15s

    Correct Answer

    12s

    Incorrect Answer

    9s

    Incorrect Answer

    none of these

    Incorrect Answer
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    Explanation:

    Distance = 600 metres

    Total Speed = 64 + 80 = 144 kmph (added because they are travelling in opposite directions)
    In m/sec, speed = 144 *(5/18) = 40 m/sec
    Distance = Speed * Time
    600 = 40 * Time
    Therefore, Time = 15 seconds
    Hence, option 1 is the correct answer.

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