A man can swim in still water at 4.5 km/h, but takes twice as long to swim upstream than downstream. The speed of the stream is? A. 2.25 B. 7.5 C. 1.5 D. 3 Answer Workspace Report Discuss Answer with explanation Answer: Option C Explanation Explanation: M = 4.5 S = x DS = 4.5 + x US = 4.5 + x 4.5 + x = (4.5 – x)2 4.5 + x = 9 -2x 3x = 4.5 x = 1.5 Workspace
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