A train 200 m long running, at a speed of 36 km/h, takes 55 seconds to cross a bridge completely. What is the length of the bridge?
Answer & explanation
Correct answer: option 3
Speed of train = 36 × \(\frac{5}{18}\) = 10 m/sec
Let Length of bridge = B meter
Distance = Speed × Time
200 + B = 10 × 55
200 + B = 550
B = 550 - 200
= 350 m
So Length of bridge = 350m