A man covers a certain distance by car driving at 30 km/hr and he returns back to the starting point riding on a scooter at 10 km/hr. Find his average speed for the whole journey.

A man covers a certain distance by car driving at 30 km/hr and he r

1.	A man covers a certain distance by car driving at 30 km/hr and he returns back to the starting point riding on a scooter at 10 km/hr. Find his average speed for the whole journey.
A.	8 Km/hr
B.	17 Km/hr
C.	15 Km/hr
D.	12 km/hr
Answer» D. 12 km/hr

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A man covers a certain distance by car driving at 30 km/hr and he returns back to the starting point riding on a scooter at 10 km/hr. Find his average speed for the whole journey.

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