To find the speed of a river's current, boatman decides to carry out the following experiment. He drops a wooden bucket into the water and himself sets off downstream, rowing along the flow of river. After 40 min, he reaches a point A, 1km from his starting-point and turns back. After travelling some distance upstream, he picks up the bucket, turns round again and, rowing downstram once more, reaches A for the second time 24 min later (after picking the bucket). Assuming that the speeds of both current and boat (w.r.t. river) are constant, and also that no time is wasted on turning round. What is the speed of the current?

To find the speed of a river's current, boatman decides to carry out the following experiment. He drops a wooden bucket into the water and himself sets off downstream, rowing along the flow of river. After 40 min, he reaches a point A, 1km from his starting-point and turns back. After travelling some distance upstream, he picks up the bucket, turns round again and, rowing downstram once more, reaches A for the second time 24 min later (after picking the bucket). Assuming that the speeds of both current and boat (w.r.t. river) are constant, and also that no time is wasted on turning round. What is the boat's speed relative to the water?

To find the speed of a river's current, boatman decides to carry out the following experiment. He drops a wooden bucket into the water and himself sets off downstream, rowing along the flow of river. After 40 min, he reaches a point A, 1km from his starting-point and turns back. After travelling some distance upstream, he picks up the bucket, turns round again and, rowing downstram once more, reaches A for the second time 24 min later (after picking the bucket). Assuming that the speeds of both current and boat (w.r.t. river) are constant, and also that no time is wasted on turning round. How long does the boatman spend on rowing upstream to meet the bucket?

A boatman moves his boat with a velocity 'v' (relative to water) in river and finds to his surprise that velocity of river 'u' (with respect to ground) is more than 'v'. He has to reach a point directly opposite to the starting point on another bank by travelling minimum possible distance. Then

A boatman moves his boat with a velocity 'v' (relative to water) in river and finds to his surprise that velocity of river 'u' (with respect to ground) is more than 'v'. He has to reach a point directly opposite to the starting point on another bank by travelling minimum possible distance. Then

A boatman moves his boat with a velocity 'v' (relative to water) in river and finds to his surprise that velocity of river 'u' (with respect to ground) is more than 'v'. He has to reach a point directly opposite to the starting point on another bank by travelling minimum possible distance. Then

A man can row upstream at 15 km/h and downstream at 21 km/h. The speed of water current of the river is :

A river is flowing with a steady speed of 4km/h. One rows his boat down stream in the river and then returns by rowing upstream in the same river.When he returns to the starting point ,the total distance covered by him is 42km.If the return journey takes 2 h more than his outward journey, then the speed of his rowing in still water must be

A river is flowing at a speed of 5 km/h in a particular direction. A man, who can swim at a speed of 20 km/h in still water, starts swimming along the direction of flow of the river from point A and reaches another point B which is at a distance of 30 km from the starting point A. On reaching point B, the man turns back and starts swimming against the direction of flow of the river and stops after reaching point A. The total time taken by the man to complete his journey is

A man can row 30 km upstream and 44 km downstream in 10 hrs . Also , he can row 40 km upstream and 55 km downstream in 13 hrs . Find the speed of the man in still water .