A man on tour travels first 320 km at 32 km/hr and the next 320 km at 160 km/hr. The average speed for the first 640 km of the tour is:

A man on tour travels first 320 km at 32 km/hr and the next 320 km at

1.	A man on tour travels first 320 km at 32 km/hr and the next 320 km at 160 km/hr. The average speed for the first 640 km of the tour is:
A.	60 km/hr
B.	75 km/hr
C.	90 km/hr
D.	45km/hr
Answer» B. 75 km/hr

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A man on tour travels first 320 km at 32 km/hr and the next 320 km at 160 km/hr. The average speed for the first 640 km of the tour is:

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