A train is running at a speed of 99 km/hr. If the train is 565 m long, then what will be the time (in seconds) taken by it to cross a 975m long tunnel?
Answer & explanation
Correct answer: option 2
Speed = 99 km/h
99 km/h = 99 × \(\frac{5}{18}\) = \(\frac{55}{2}\) m/sec
Total distance = 565 + 975 = 1540 m
Time = \(\frac{1540 × 2 }{55}\) = 56 seconds