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

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

1.	A boy rides his bicycle 10 km at an average speed of 12 km/hr and travells 12 km at an average speed of 10 km/hr. His average speed for the entire trip is approximately :
A.	0.4 km/hr
B.	0.8 km/hr
C.	1.0 km/hr
D.	2.2 km/hr
Answer» C. 1.0 km/hr

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

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