1.

A and B are two stations, a train goes from A to B at 64 km/hr. and return to A at a slower speed. If its average speed for the whole journey is 56 km/hr. at what speed did it return ?

A. 48 km/hr.
B. 49.77 km/hr.
C. 52 km/hr.
D. 47.46 km/hr.
Answer» C. 52 km/hr.


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