A boat has to travel upstream 20km distance from point x of a river to point y. total time taken by x-y and y-x is 41min. what is the speed of boat.
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Let x be the speed of the boat and y be the speed of the current.
Speed upstream = (x - y) km/h
Speed downstream = (x + y) km/h
According to the question,
20x−y+20x+y=2536
In this equation, there are two variables but only one equation.
So, the value of x cannot be determined.
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