A man rows a boat 18 km in 4 hdownstream and return upstreamin 12 h. T – InterviewSolution

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A man rows a boat 18 km in 4 hdownstream and return upstreamin 12 h. The speed of the stream*(in km per hour) is(a) 1(b) 1.5(c)2(d) 1.75

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The speed of the stream is 1.5km per hour

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