# A boat is sent across a river with a velocity of 8 km/h if the resultant velocity of the boat is 10km/h then velocity of river is???

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this is because resultant velocity=Velocity of boat +velocity of river

since the resultant velocity is showing an increase in the boat's velocity ;

hence,

10 km/hr=8 km/hr+velocity of river

therefore ,

velocity of river=10 km/hr-8 km/hr=2 km/hr.

hope i helped u:)