Two trains running at 63 kmph and 45 kmph cross each other in 15 seconds when they run in opposite direction. When they run in same direction, a person, in the faster train, observes that he crossed the other train in 40 seconds. Find the length of both trains.
1
280 metre and 250 metre
2
450 metre and 200 metre
3
200 metre and 250 metre
4
240 metre and 200 metre