Question
The speed of current is 18 km/hr. If the speed of the
boat in still water had been 7 km/hr more than the original speed, then it would take 8 hours to cover 440 km in downstream. Find the original speed of the boat in still water (in km/hr).Solution
ATQ, Let the speed of the boat in still water be ‘x’ km/hr. According to the question, (x + 7 + 18) = 440 / 8 Or, x + 25 = 55 So, x = 55 - 25 = 30 km/hr Final Answer: 30 km/hr
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