A man, on tour travel first 160 km, at 64 km/hr. and the next 160km at 80km/hr. the average speed for the first 320 km. of the tour is ?

A man, on tour travel first 160 km, at 64 km/hr. and the next 160km at

1.	A man, on tour travel first 160 km, at 64 km/hr. and the next 160km at 80km/hr. the average speed for the first 320 km. of the tour is ?
A.	35.55km/hr.
B.	71.11km/hr.
C.	36km/hr.
D.	72km/hr.
Answer» C. 36km/hr.

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A man, on tour travel first 160 km, at 64 km/hr. and the next 160km at 80km/hr. the average speed for the first 320 km. of the tour is ?

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