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Mathematics, 02.08.2017 05:07 keylor97

If a boatman rows his boat 35km up stream and 55km downstream in 12 hours and he can row 30km upstream and 44 km downstream in 10hr , then the speed of the stream and that of the boat in still water

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If a boatman rows his boat 35km up stream and 55km downstream in 12 hours and he can row 30km upstre...
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