Question
A boat moves upstream at 18 km/hr. If it covers 270 km
downstream in 5 hours, determine the speed of the current.Solution
Let the speed of the current be ‘x’ km/hr Therefore, speed of the boat in still water = (x + 18) km/hr According to the question, (x + 18 + x) = 270/5 Or, 2x + 18 = 54 Or, 2x = 36 Or, x = 18 Therefore, speed of the current = 18 km/hr
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