Multiple Choice Questions on A train speeds past a pole in 20 seconds and speeds past a platform 100 metres in length in 30 secon........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A train speeds past a pole in 20 seconds and speeds past a platform 100 metres in length in 30 secon...........

Quantitative Aptitude ( CCS) Problems on trains
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    A train speeds past a pole in 20 seconds and speeds past a platform 100 metres in length in 30 seconds. What is the length of the train ?.

    100 metre

    Incorrect Answer

    150 metre

    Incorrect Answer

    180 metre

    Incorrect Answer

    200 metre

    Correct Answer
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    Explanation:

    Let the length of train be x metre.
    ∴ Speed of train = x/20 = (x + 100)/30
    = 3x = 2x + 200
    = x = 200 m  length of train

    By: Pranav Gupta
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