A person covers 40% of the distance from A to B at 8km/hr, 40% of the remaming distance at 9km/hr and the rest at 12km/hr. His average speed for the journey is:

A)9 5/8 B)9 2/3 C)9 3/8 D)9 1/3

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A person covers 40% of the distance from A to B at 8km/hr, 40% of the remaming distance at 9km/hr and the rest at 12km/hr. His average speed for the journey is:

A)9 5/8 B)9 2/3 C)9 3/8 D)9 1/3

Admin Asked question