A train runs for 3 h at the speed of 40 km/h and then for 41/2 h at the speed of 60 km/h. Thus, it covers 3/5th part of the whole distance. It wants to cover the remaining distance in 4 h, find the average speed of the train for remaining distance ?

A train runs for 3 h at the speed of 40 km/h and then for 41/2 h at th

1.	A train runs for 3 h at the speed of 40 km/h and then for 41/2 h at the speed of 60 km/h. Thus, it covers 3/5th part of the whole distance. It wants to cover the remaining distance in 4 h, find the average speed of the train for remaining distance ?
A.	45 km/h
B.	35 km/h
C.	80 km/h
D.	65 km/h
Answer» E.

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