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In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water in km/hr is:
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A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
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If a mans rate with the current is 15 km/hr and the rate of the current is 11/2 km/hr, then his rate against the current is
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The speed of the boat in still water in 12 kmph. It can travel downstream through 45 kms in 3 hrs. In what time would it cover the same distance upstream?
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A man rows to a place 48 km distant and back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is :
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The current of stream runs at the rate of 4 km an hour. A boat goes 6 km and back to the starting point in 2 hours. The speed of the boat in still water is :
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The current of a stream runs at 1km/hr. A motor boat goes 35 km. upstream and back again to the starting point in 12 hours. The speed of motor boat in still water is :
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A girl can row 4 $\dfrac{2}{3} $ km/hr in still water and she finds that it takes her thrice as much time to row up than as to row down the same distance in river. The speed of the current is :
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A person can swim in water at 4 km/h. If the speed of water 2km/h, how many hours will the man take to swim back against the current for 6km?
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A man can row his boat with the stream at 6km/h and against the stream in 4 km/h. The man’s rate is?
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