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A-man-can-row-a-boat-at-4-km-hr-in-still-water-He-rows-the-boat-2km-upstream-and-2km-back-to-his-starting-place-in-2-hours-How-fast-is-the-stream-flowing-




Question Number 10547 by Saham last updated on 17/Feb/17
A man can row a boat at 4 km/hr in still water.  He rows the boat 2km upstream and 2km back to  his starting place in 2 hours. How fast is the stream  flowing ?
$$\mathrm{A}\:\mathrm{man}\:\mathrm{can}\:\mathrm{row}\:\mathrm{a}\:\mathrm{boat}\:\mathrm{at}\:\mathrm{4}\:\mathrm{km}/\mathrm{hr}\:\mathrm{in}\:\mathrm{still}\:\mathrm{water}. \\ $$$$\mathrm{He}\:\mathrm{rows}\:\mathrm{the}\:\mathrm{boat}\:\mathrm{2km}\:\mathrm{upstream}\:\mathrm{and}\:\mathrm{2km}\:\mathrm{back}\:\mathrm{to} \\ $$$$\mathrm{his}\:\mathrm{starting}\:\mathrm{place}\:\mathrm{in}\:\mathrm{2}\:\mathrm{hours}.\:\mathrm{How}\:\mathrm{fast}\:\mathrm{is}\:\mathrm{the}\:\mathrm{stream} \\ $$$$\mathrm{flowing}\:? \\ $$
Answered by mrW1 last updated on 17/Feb/17
see Q#10069
$${see}\:{Q}#\mathrm{10069} \\ $$

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