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A pipe can fill a tank in x hours and ...

A pipe can fill a tank in x hours and another pipe can empty it in `(y\ >\ x)` hours. If both the pipes are open, in how many hours will the tank be filled?

A

(x - y) hours

B

(y-x ) hours

C

`(xy )/( x-y)` hours

D

`(xy ) /( y-x)` hours

Text Solution

Verified by Experts

The correct Answer is:
D
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