Multiple Choice Questions on Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 ...........

Quantitative Aptitude ( CCS) Problems on trains
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    Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is ?

    1:3

    Incorrect Answer

    3:2

    Correct Answer

    3:5

    Incorrect Answer

    3:7

    Incorrect Answer
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    Explanation:

    Let the speeds of the two trains be x m/sec and y m/sec respectively.

    Then, length of the first train = 27x metres,
    Length of the second train = 17y metres.
    27x + 17y /x+y = 23

    27x +17y = 23x = 23y

    4x = 6y

    x/y = 6/4 = 3/2

    Hence, otpin 2 is the correct answer.

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