A person covers the distance from P to Q at the speed of 3 km/hr. From Q to P he covers the distance at 6 km/hr. What is the average speed per hour?

A person covers the distance from P to Q at the speed of 3 km/hr. F

1.	A person covers the distance from P to Q at the speed of 3 km/hr. From Q to P he covers the distance at 6 km/hr. What is the average speed per hour?
A.	3.5 km/hr
B.	4.5 km/hr
C.	5 km/hr
D.	4 km/hr
Answer» E.

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A person covers the distance from P to Q at the speed of 3 km/hr. From Q to P he covers the distance at 6 km/hr. What is the average speed per hour?

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