Two trains are moving in opposite directions at speeds of 80 km/h and 70 km/h. The length of one train is 180 m. The time taken by them to cross each other is 19 seconds. The length (in m) of the other train, correct to 2 decimal places, is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 611.66.
Relative speed = 80 + 70 = 150 km/h = 150 × = m/s
Distance covered in 19 s = × 19 = m
Other train length = – 180 = = = 611.66 m