Two trains are moving in opposite directions at speeds of 110 km/h and 140 km/h. The length of one train is 140 m. The time taken by them to cross each other is 5 seconds. The length (in m) of the other train, correct to 2 decimal places, is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 207.22.
Speed sum = 110 + 140 = 250 km/h = (250 × 1000) / 3600 = 69.44 m/s
Time = 5 sec → Distance = 69.44 × 5 = 347.22 m
Other train’s length = 347.22 – 140 = 207.22 m