Trains Questions and Answers : Quantitative Aptitude

  1. 21.   A train 400m long can cross an electric pole in 20sec, then find the speed of the train?

    A.) 65 Kmph B.) 70 Kmph
    C.) 72 Kmph D.) 75 Kmph
    Answer: Option 'C'

    Length = Speed * time
    Speed = L/T

    S = 400/20
    S = 20 M/Sec

    Speed= 20*18/5 (To convert M/Sec in to Kmph multiply by 18/5)
    Speed = 72 Kmph


  2. 22.   A train 250m long can cross a bridge of length 350m in 20sec, then find the speed of the train?

    A.) 30 m/sec B.) 32 m/sec
    C.) 35 m/sec D.) 36m/sec
    Answer: Option 'A'

    Length = Speed * Time

    Speed= Length/Time

    Speed= 600/20

    Speed=30 M/Sec


  3. 23.   The two trains of lengths 400m, 600m respectively, running at same directions. The faster train can

           Cross the slower train in 180sec, the speed of the slower train is 48km. then find the speed of the

           Faster train?

    A.) 58 Kmph B.) 68 Kmph
    C.) 78 kmph D.) 55 Kmph
    Answer: Option 'B'

    Length of the two trains = 600m + 400m

    Speed of the first train = X
    Speed of the second train= 48 Kmph

    1000/X - 48 = 180
    1000/x - 48 * 5/18 = 180
    50 = 9X - 120
    X = 68 Kmph




Quantitative Aptitude Topics


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