A man travels 50 km at speed 25 km/h and next 40 km at 20 km/h and there after travels 90 km at 15 km/h. His average speed is :

A man travels 50 km at speed 25 km/h and next 40 km at 20 km/h and the

1.	A man travels 50 km at speed 25 km/h and next 40 km at 20 km/h and there after travels 90 km at 15 km/h. His average speed is :
A.	18 kmph.
B.	25 kmph.
C.	20 kmph.
D.	15 kmph.
Answer» B. 25 kmph.

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