Multiple Choice Questions on A 270 metres long train running at the speed of 120 kmph crosses another train running in opposite d........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A 270 metres long train running at the speed of 120 kmph crosses another train running in opposite d...........

Quantitative Aptitude ( CCS) Problems on trains
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    A 270 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train ?

    230m

    Correct Answer

    250m

    Incorrect Answer

    280m

    Incorrect Answer

    300m

    Incorrect Answer
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    Explanation:

    Relative speed = (120 + 80) km/hr
    =(200*5/18)m/s = (500/9)m/s

    Let the length of the other train be x metres.

    Then, x+270/9 = 500/9

    =>  x + 270 = 500

    =>  x = 230.

    Hence, option 1 is the correct answer.

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