A man rows downstream 60 km and upstream 36 km, taking 4 hours each time. The speed of the man is :

A man rows downstream 60 km and upstream 36 km, taking 4 hours each ti

1.	A man rows downstream 60 km and upstream 36 km, taking 4 hours each time. The speed of the man is :
A.	15 km/h
B.	16 km/h
C.	8 km/h
D.	12 km/h
Answer» E.

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