Multiple Choice Questions on Two trains each of 120 m in length run in opposite directions with a velocity of 40 m s and 20 m s r........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Two trains each of 120 m in length run in opposite directions with a velocity of 40 m s and 20 m s r...........

Quantitative Aptitude ( CCS) Problems on trains
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    Two trains each of 120 m in length, run in opposite directions with a velocity of 40 m/s and 20 m/s respectively. How long will it take for the tail ends of the two trains to meet each other during the course of their journey :

    20 s

    Incorrect Answer

    3 s

    Incorrect Answer

    4 s

    Correct Answer

    5 s

    Incorrect Answer
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    Explanation:

    Relative speed of the trains = (40 + 20) = 60 m/s

    Distance = (120 + 120) = 240 m

    Time taken by trains to cross each other completely

    = 240 / 60 = 4s

    Hence, option 3 is the correct answer.

    By: Amit Kumar
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