A. 70 km/hr

B. 71 km/hr

C. 72 km/hr

D. 79.2 km/hr

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79.2

Speed of train = (132 * 3600) /(6*1000)=79.2 km

d

79.2

TRAIN LENGTH = 132 M

TIME = 6 S

132/6 = 22 M / S

22*3600/1000

79.2 KM/H

Answer is 79.2 KM/H

132 / 6 = 22

22 * 3.6 = 79.2

70km/hr

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

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

D

132/6×3600/1000=79.2

132 / 6 = 22 (m/s)

22 x 3.6 = 79.2 (km/h)

The train drive 79.2 km/h

d = 132/1000 = .132

t = 6 / 3600 = .00166

speed = .132/.00166 = 79.2 km/hr

D)79.2 Km/hr

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

S=D/t

D=132m

t=6s

(132/6)*(18/5)

=79.2km/hr

S=D/t

D=132m

t=6s

(132/6)*(18/5)

=79.2km/hr

D

79.2

79.2

79.2km/hr

Train length=132m

Time taken = 6s

Speed = length/time

= 132/1000 / 6/3,600

= 0.132/0.00166 km/hr

= 79 km/hr