1.

A boat crosses a river with a velocity of 8 km/h. If the resulting velocity of boat is 10 km/h then the velocity of river water is                                                [CPMT 2001]

A.                 4 km/h 
B.                 6 km/h
C.                 8 km/h 
D.                 10 km/h
Answer» C.                 8 km/h 


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