The ratio of speed of boat to that of stream is 2: 1. If the difference between upstream and downstream speed is 12km/hr, then how much time will the man take to reach to starting point from his present position? A. 35 minutes. B. 45 minutes C. 60 minutes ibps po maths questions with answers; quant questions for sbi po ; quant questions. maths quiz ibps po � boats and streams 1) A boat can travel with a speed of 13 km/h in still water. If the speed of the stream is 4 km/h, find the time taken by the boat to go 68 km downstream. We would like to show you a description here but the site won�t allow myboat263 boatplansg: downstream.
Downstream. Advertising expense. Upstream. Patent filing fees. Downstream. Salary of company president. Midstream. Depreciation on manufacturing equipment. Downstream. Depreciation on office equipment. You might also like. Problem Statement. If a man travel's by his motor boat down a river to his office and back. With the speed of the river unchanged, if he doubles the speed of the boat, then his total travel time gets reduced by 75%. The ratio of the original speed fo the boat to speed of the river is?� time to cover the distance (one way/round trip). Downstream speed would be. S down = S b + S r. And upstream speed would be. S up = S b - S r. The time taken to complete the round trip would be. T = D S up + D S down. Condition given in the problem. If speed of the boat is doubled, time reduces by 75% (i.e its 25% of original time). 1 4 T = D 2S b - S r + D 2S b + S r. Let's make T % in the equation. T = 4D 2S b - S r + 4D 2S b + S r. Finding the ratio now. D S b - S r + D S b + S r = 4D 2S b - S r + 4D 2S b + Upstream And Downstream Problems Class 10 Reading S r. A person rows a kilometre down the stream in 10 minutes and up the stream in 30 minutes. Find the velocity of the stream. Ans) Speed of the person down the stream = 1 km / 10 Speed Upstream And Downstream 12 minutes = 6 km / hr.� Therefore x + y = 6 and x - y = 2. Solving we get velocity of the stream, y = 2 kmph. Remember: Upstream means one is rowing against the direction of water flow while downstream means one is rowing in the same direction of water flow. 0 Like 0 Dislike. Follow 2.

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