A boat man can row with a speed of 10 km/hr. in still water. The river flow steadily at 5 km/hr. and the width of the river is 2 km. if the boat man cross the river with reference to minimum distance of approach then time elapsed in rowing the boat will be:-

A boat man can row with a speed of 10km/hr in still water.The river flow steadily at 5km/hr and the width of the river is 2km. If the boat man cross the river with reference to minimum distance of approach then time elapsed in rowing the boat will be

A boat man can rown with a speed of 10 km h^(-1) in still water. If the river flows steadily at 5 km //h , in which direction showld the boatman row in order to reach a point on the other bank directly opposite to the point from wher he stared ? The width of the river is 2km .

Boat can travel with a speed of 13 km/hr in still water. If the speed of the streem is 4 km/hr, find the time taken by the boat to go 68 km downstream.

If a boat can have a speed of 4 km/hr in still water, for what values of speed of river flow, it can be managed to row boat right across the river, without any drift ?

A boat travels with a speed of 15km/hr in still water.If a river flowing at 5km/hr ,the boat travels some distance downstream and then returns.The ratio of average speed to the speed in still water is

A boat which has a speed of 6km/h in still water crosses a river of width 1 km along the shortest possible path in 20 min. the velocity of the river water in km/h is

A boat moves with speed of 5 km/h relative to water in a river flowing with a speed of 3 km/h and having a width of 1 km. The minimum time taken around a round trip is