Two trains of same length are running on parallel tracks in the same direction åt 56 km/h and 44 km/h, respectively. The faster train passes the other train in 63 seconds. What is the length (in m) of each train?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 105.
Relative speed = 56 − 44 = 12 km/h = (12 × 1000) ÷ 3600 = 10/3 m/s
Time = 63 sec
Let length of each train = x meters
So, total distance = 2x
Using: distance = speed × time
2x = (10/3) × 63 = 210
⇒ x = 105