Train A running at the speed of 30 km/h can cross another train B running in opposite direction in 20 seconds. Find the speed of train B if sum of length of both trains is 600 m.
- AOption (a)
72 km/h
- BOption (b)
70 km/h
- COption (c)
60 km/h
- DOption (d)
78 km/h
- EOption (e)
None of these
View answer & explanationHide answer & explanation
Correct answer
72 km/h

