Question
A boat sailor begins rowing from point X, moving against
the stream for 30 minutes. After that, he turns around and rows with the stream for another 30 minutes, reaching point Y. Given that the distance between X and Y is 5 km, determine the speed of the stream.Solution
ATQ,
Let, speed of boat in still water and stream be ‘x’ km/hr and ‘y’ km/hr, respectively. According to question, (x – y) × (30/60) + 5 = (x + y) × (30/60) 0.5(x + y – x + y) = 5 y = 5 km/hour
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