What time (in seconds) is required for a 496 m long train to cross a 664 m long tunnel, if the train travels at a speed of 18 km/h?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 232.
Train length = 496 m
Tunnel length = 664 m
Total distance = 496 + 664 = 1160 m
Speed = 18 km/h = (18 × 1000) / 3600 = 5 m/s
Time = Distance / Speed = 1160 / 5 = 232 seconds