[" A boat is sent across a river with a velocity of "8km/h" .if "],[" the resultant velocity of boat is "10km/h" ,then velocity of "],[" river is "]

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

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

A boat is rowed across a river at the rate of 4.5(km)/(hr) . The river flows at the rate of 6(km)/(hr) . The velocity of boat in (m)/(s) is:

A boat is rowed across a river at the rate of 4.5(km)/(hr) . The river flows at the rate of 6(km)/(hr) . The velocity of boat in (m)/(s) is:

A man swims across the river which flows with a velocity of 3 km/h due east.if the velocity of man relative to water is 4 km/h due north, then What is his velocity relative to the shore of the river?

A man swims across the river which flows with a velocity of 3 km/h due east.if the velocity of man relative to water is 4 km/h due north, then How long does he take to across the river if the river is 1 km wide?