Question
The speed of current is 26 km/hr. If the speed of the
boat in still water had been 12 km/hr more than the original speed then it would take 7.5 hours to cover 495 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 + 12 + 26) = 495/7.5 Or, x = 66 – 38 = 28
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