Multiple Choice Questions on Two trains 108 m and 112 m in length are running towards each other on parallel lines at a speed of ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Two trains 108 m and 112 m in length are running towards each other on parallel lines at a speed of ...........

Quantitative Aptitude ( CCS) Problems on trains
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    Two trains 108 m and 112 m in length are running towards each other on parallel lines at a speed of 45 km/hr and 54 km/hr, respectively. How long will it take then to cross each other after they meet?

    5 seconds

    Incorrect Answer

    7 seconds

    Incorrect Answer

    8 seconds

    Correct Answer

    6 seconds

    Incorrect Answer
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    Explanation:

    Relative speed = 45 + 54 = 99 kmph (99×5/18) m/sec = 55/2m/sec

    Required Time=108+112 /55/2 = 8 seconds

    Hence, option 3 is the correct answer.

    By: Amit Kumar
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