The speed of boat is `5 kmh^(-1)` in still water. It crosses a river of width 1 km along the shortest possible path in 15 min. Then, velocity of river will be

The speed of boat is 5 km/hr in still water. It crosses a river of width 1 km along the shortest possible path in 15 minutes. The velocity of the river water is

The speed of a boat is 5 km/h in still-water. It crosses a river of width 1 km along the shortest path in 20 min. The velocity of river water in km/h is

A boat which has a speed of 5 km hr^(-1) in still water crosses a river of width 1 km along the shortest possible path in 15 minutes. Calculate the velocity of the river water.

A boat which has a spped of 5km h^(-1) in still water crosses a river of width 1 km along the shortest possible path in 15 minutes. Calculate the velocity of river water.