A train can completely cross a 1000-metrn long bridge in 15 seconds. It can completely cross another 1300-metre long bridge in 19 seconds. What is the length of the train?
Answer & explanation
Correct answer: option 1
According to question ,
Train covers ( 1300 - 1000) m in ( 19 - 15 ) seconds .
Speed of train = \(\frac{300}{4}\) = 75 m/sec
Train crosses 1000 m bridge in 15 sec .
Distance covered by train in 15 sec = 75 × 15 = 1125 m
Total distance = Length of train + length of bridge
1125 = 1000 + Length of train
So , Length of train = 125 m