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A motorcyclist drives from place A to B with a uniform speed of 30 km h−1 and returns from place B to A with a uniform speed of 20 km h−1. Find his average speed.

Answer» A motorcyclist drives from place A to B with a uniform speed of 30 km h1 and returns from place B to A with a uniform speed of 20 km h1. Find his average speed.


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