A train crosses a bridge half of its length with a speed of 72 km/hr in 1 min, then finds in how much time it will cross another train of double-length which is standing on the platform with 60% of its speed?
1
100 sec
2
200 sec
3
300 sec
4
400 sec
A train crosses a bridge half of its length with a speed of 72 km/hr in 1 min, then finds in how much time it will cross another train of double-length which is standing on the platform with 60% of its speed?