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A train 132 m long passes a telegraph pole in 6 seconds. Find the speed of the train
A. 70 km/hr
B. 71 km/hr
C. 72 km/hr
D. 79.2 km/hr

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A train 132 m long passes a telegraph pole in 6 seconds. Find the speed of the train
A. 70 km/hr
B. 71 km/hr
C. 72 km/hr
D. 79.2 km/hr
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15 Answers

  1. L =132m convrt to km/hrso, 132×18/5 =475.2 km/ hr
    Time=6
    Speed=length/ time
    Speed =475.2/6=79.2km/hr

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  2. 132m speed
    6s time
    speed is in kmph
    and 1hr 60 min
    i min 60 sec
    so 60*60/6=600=t
    multiply and divide by 600
    132*600m/600*6 sec
    79200m/3600 sec
    but 3600 sec=60min=1 hr
    so
    79200m/hr
    but 1000m=1km
    so
    79200/1000=79.2km
    so 79.2km/hr is the answer

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  3. d = 132/1000 = .132
    t = 6 / 3600 = .00166
    speed = .132/.00166 = 79.2 km/hr

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  4. Correct option is
    C
    79.2 km/hr
    Speed of train =
    Time taken to pass the pole
    Length of train

    =
    6
    132

    m/sec=22m/sec=(22×
    5
    18

    )km/hr=79.2km/hr

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  5. Train length=132m
    Time taken = 6s

    Speed = length/time
    = 132/1000 / 6/3,600
    = 0.132/0.00166 km/hr
    = 79 km/hr

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