Multiple Choice Questions on Two trains are moving in opposite direction at the rat of 60 km hr and 90 km hr Their lengths are 1 ........... for HAS Exam Preparation

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Multiple Choice Questions

Two trains are moving in opposite direction at the rat of 60 km hr and 90 km hr Their lengths are 1 ...........

Quantitative Aptitude (HAS) Problems on trains
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    Two trains are moving in opposite direction at the rat of 60 km/hr and 90 km/hr. Their lengths are 1.10 kms and 0.9 kms respectively. The time taken by the slower train to cross the faster train in seconds is

    36

    Incorrect Answer

    45

    Incorrect Answer

    48

    Correct Answer

    49

    Incorrect Answer
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    Explanation:

    Relative speed = (60+ 90) km/hr

       = 150 x 5/ m/sec
    18
       = 125/ m/sec.
    3

    Distance covered = (1.10 + 0.9) km = 2 km = 2000 m.

    Required time = 2000 x 3/

    sec = 48 sec.
    125

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