A train 240 m long passed a pole in 24 seconds. How long will it take to pass a platform 650 m long?

A. 65 sec

B. 79 sec

C. 89 sec

D. 99 sec

for 240 m —– 24 sec
for 240+650 m—— ?

Cross multiple 890*24 / 240+89 sec

 240 m long train, the time it takes to cross a pole is 24 seconds,to find the time that the same train will take to cross a 650 m platform. Hence, we got the speed of the train as 10 m/s. From the top calculations, the train will take 89 seconds to cross the platform so the answer is

(C).89 seconnfd

65

240=24
650=X
240X=650X24
X=15600/240
X=65

s=D/t
Train’s speed=240/24=10m/s
distance=(240+650)=890m
time=D/s
time=890/10
time=89

65 sec