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Time Distance and Speed
A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?
A. 230 m B. 240 m
C. 260 m D. 270 m
Read Solution (Total 3)
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- Option D 270m
72 Kmph=72*5/18=20m/s
The train has to cover its length and the length of the platform
so the total distance =250+l
250+l=20*26
250+l=520
l=520-250
=270m
length of the train=270m - 12 years agoHelpfull: Yes(6) No(0)
- let the length of the train=xm/s
now,((length of train+length of platform)/time for taken to crossthe platfrom)
=the speed of the train;
(x+250)/26=72*5/18
x=270m - 10 years agoHelpfull: Yes(2) No(1)
- SPEED=(length of train + length of platform)/(time)
72*(10/36)=(250+L)/9
L=270 - 9 years agoHelpfull: Yes(0) No(0)
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