A boy walks from his house to the park which is 500 m away in 5 minutes and walks backs in 7 minutes. His average speed (in km/h) is∶

A boy walks from his house to the park which is 500 m away in 5 minute

1.	A boy walks from his house to the park which is 500 m away in 5 minutes and walks backs in 7 minutes. His average speed (in km/h) is∶
A.	1
B.	12
C.	5
D.	2.5
Answer» D. 2.5

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A boy walks from his house to the park which is 500 m away in 5 minutes and walks backs in 7 minutes. His average speed (in km/h) is∶

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