A goods train 350 m long passes through a tunnel of 1250m in 80 seconds. What is the speed of the train?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 72 km/h.
Total distance = 350 + 1250 = 1600 m
Time = 80 seconds
Speed = = 20 m/s
20m/sec = 20 × = 72 km/hr