A boat travels 60 km upstream in 120minutes,and returns to thestarting spot downstream in 72 minutes. It is given that the flow speed of thewater current is
“x” km/h , and the speed of the boat instill water is “y” km/h.
(a) (A)Express , in term of x and y ,the speed of the boat traveling upstream.
(b) (B)Express , in term of x and y ,the speed of the traveling downstream,
(c) (C)Find the flow speed of thewater current and the speed of the bot in still water
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