-
Two train are running in opposite direction with a speed of 62 kmph and 40 kmph respectively. If the length of one train is 250 meters and they cross each other in 18 seconds, the length of the other train is ?
-
- 145 metres
- 230 metres
- 260 metres
- Cannot be determined
Correct Option: C
Let the length of another train be L meters.
Their relative speed = (62 + 40) km/hr = 102 x (5/18) = (85/3) m/sec
∵ 250 + L/(85/3) = 18
⇒ 3(250 + L)/85 = 18
⇒ 250 + L = 510
⇒ L = 260
∴ Length of another train = 260 meters
