Multiple Choice Questions on A train leaves Amritsar at 6 a m and reaches Delhi at 10 a m Another train leaves Delhi at 8 a m and........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A train leaves Amritsar at 6 a m and reaches Delhi at 10 a m Another train leaves Delhi at 8 a m and...........

Quantitative Aptitude ( CCS) Problems on trains
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    A train leaves Amritsar at 6 a.m. and reaches Delhi at 10 a.m. Another train leaves Delhi at 8 a.m. and reaches Amritsar at 11:30 a.m. At what time to the two trains cross one another

    9.04 a.m.

    Incorrect Answer

    9.00 a.m.

    Incorrect Answer

    8.36 a.m.

    Incorrect Answer

    8.56 a.m.

    Correct Answer
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    Explanation:

    Suppose distance between Delhi and Chandigarh is 28 kms.
    Then speed of first train = 28/4= 7 kmph
    speed of 2nd train = 28/3.5= 8 kmph

    If trains met after t hours from 6 AM, then
    7t + 8*(t-2) = 28
    15t = 44
    t = 44/16 hours = 2 hrs 56 mins.

    so, 6am + 2 hrs 56 mins = 8.56 am

    Hence, option 4 is the correct answer.

    By: Amit Kumar
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