show that t1 : t2 :: root v +u : root v – u.

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A man directly crosses a river in time t1 and swims down the current a distance equal to the width of the river in time t2. If u and v be the speed of the current and the man respectively, show that t1 : t2 :: root v +u : root v – u.
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Sep
A man directly crosses a river in time t1 and swims down the current a distance equal to the width of the river in time t2. If u and v be the speed of the current and the man respectively, show that t1 : t2 :: root v +u : root v – u. A [...]
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