Question

A bridge is 500 m long. A 100 m long train crosses the bridge at the speed of 30m/s. Find the time taken by the train to cross it

Answer 1

Total distance= 500+100= 600
Time=distance/speed
Time=600/30= 20s

Answer 2

Answer:

total D=500+100=600

velocity=30m/s

thus time= D/S= 600/30=20 sec ans

Explanation: