1.

A man travels from point A to B at 40 km/hr and returns from B to A at 60 km/hr. What is his average speed during the whole journey?_x005F_x000D_

A. 55 km/hr
B. 45 km/hr
C. 48 km/hr
D. 50 km/hr
Answer» D. 50 km/hr


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