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

A man travels 50 km at speed 25 km/hr and next 40 km at 20 km/hr and t

1.	A man travels 50 km at speed 25 km/hr and next 40 km at 20 km/hr and there after travel 90 km at 15 km/hr. His average speed is :
A.	8 km/hr
B.	5 km/hr
C.	0 km/hr
D.	5 km/hr
Answer» B. 5 km/hr

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

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