a motorist travels to a place 150 km away at an average speed of 50 km/hr and

Question

a motorist travels to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/hr. his average speed for the whole journey in km/hr is :

Options:

A . 35

B . 36

C . 37.5

D . 38.2

Answer: Option C
Explanation :

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