A man covers a total distance of 100 km on bicycle. For the first 2 hours, the speed was 20 km/hr and for the rest of the journey, it came down to 10 km/hr.The average speed will be :

A man covers a total distance of 100 km on bicycle. For the first 2 ho

1.	A man covers a total distance of 100 km on bicycle. For the first 2 hours, the speed was 20 km/hr and for the rest of the journey, it came down to 10 km/hr.The average speed will be :
A.	$12\frac{1}{2}$$ km/hr
B.	3 km/hr
C.	$\frac{1}{8}$$ km/hr
D.	0 km/hr
Answer» B. 3 km/hr

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A man covers a total distance of 100 km on bicycle. For the first 2 hours, the speed was 20 km/hr and for the rest of the journey, it came down to 10 km/hr.The average speed will be :

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