A boat moves downstream at the rate of 1 km in 3(1/3) minutes and upstream at the rate of 10km an hour. What is the speed of the boat in still water(in km/hr)?
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10
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A boat moves downstream at the rate of 1 km in 3(1/3) minutes and upstream at the rate of 10km an hour. What is the speed of the boat in still water(in km/hr)?