Menu
Home / Arithmetic Aptitude / Problems on Trains :: Discussion

Discussion :: Problems on Trains

  1. Two trains are moving in opposite directions @ 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is:

    2. A.
    36
    B.
    45
    C.
    48
    D.
    49

    View Answer

    Workspace

    View Answer

    Answer : Option C

    Explanation :

    Relative speed = (60+ 90) km/hr

       = 1-sym-oparen-h1 150 x 5 1-sym-cparen-h1m/sec
    18
       = 1-sym-oparen-h1 125 1-sym-cparen-h1m/sec.
    3

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

    Required time = 1-sym-oparen-h1 2000 x 3 1-sym-cparen-h1sec = 48 sec.
    125

Write your comments here:

Be The First To Comment