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A man walks from P to Q at the rate of 5 km/h and returns from Q to P at 3 km/h. What is his average speed for the whole journey?
Question

A man walks from P to Q at the rate of 5 km/h and returns from Q to P at 3 km/h. What is his average speed for the whole journey?

A.

3.25 km/h

B.

3.75 km/h

C.

3.5 km/h

D.

8 km/h

Correct option is B


Given:
The speed of man P to Q = 5 km/h
Speed of man Q to P = 3 km/h
Formula used:
Average speed of the man =
Solution:
Average speed=

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