A man travels from P to Q at the speed of 60 km/h and travels from Q to P at the speed of 90 km/h. What is the average speed of the man for the whole journey?

A man travels from P to Q at the speed of 60 km/h and travels from Q t

1.	A man travels from P to Q at the speed of 60 km/h and travels from Q to P at the speed of 90 km/h. What is the average speed of the man for the whole journey?
A.	75 km/h
B.	78 km/h
C.	70 km/h
D.	72 km/h
Answer» E.

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A man travels from P to Q at the speed of 60 km/h and travels from Q to P at the speed of 90 km/h. What is the average speed of the man for the whole journey?

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