A boy rides his bicycle 10 km at an average speed of 12 km/hr and again travels

Question

A boy rides his bicycle 10 km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km//hr. His average speed for the entire trip is approximately:

Options:

A . 10.4 km/hr

B . 10.8 km/hr

C . 11 km/hr

D . 12.2 km/hr

Answer: Option B

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