Question

A 150 m long train is moving with a uniform velocity of 45 km/h. The time taken by the train to cross a bridge of length 850 meters is

• A. 56 sec
• B. 68 sec
• C. 80 sec
• D. 92 sec

Answer 1

The correct option is C

80 sec

Total distance to be covered for crossing the bridge

= length of train + length of bridge

= 150m + 850m = 1000m

Time = $\frac{Distance}{velocity}=\frac{1000}{45\times \frac{5}{18}}=80$sec