A train 120 meters long passes a pole in 12 seconds. How long will it take to pass a platform 130 meters long?
Avni KolapkarBegginer
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A train 120m long passes a pole in 12 seconds.
here, distance travelled by train=length of train= 120m
time taken by train= 12 seconds
then speed of train=distance travelled by train/time taken by train
speed of train= 120m/12sec =10 m/sec
when train passes a 130 m long platform,
distance travelled by train= length of train + length of platform=120+130=250 m
time taken by train to pass 130 m long platform=distance covered by train / speed of train
time taken by the train= 250 / 10= 25 seconds