Question
The speed of current is 29 km/hr. If the speed of the
boat in still water had been 17 km/hr more than the original speed then it would take 6.2 hours to cover 310 km in downstream. Find the original speed of the boat in still water (in km/h).Solution
Let the speed of the boat in still water be ‘x’ km/hr According to the question, (x + 17 + 29) = 310/6.2 Or, x = 50 – 46 = 4
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