A pipe can fill a tank in x hours and another pipe can empty it in y(y>x) hours. If both the pipes are open… · ABC26GN3393

Subject: General Aptitude · Chapter: Pipes and Cisterns · Exam: S.S.C. 2007

A pipe can fill a tank in $x$ hours and another pipe can empty it in $y(y>x)$ 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)$\frac{x y}{x-y}$ hours
(d)$\frac{x y}{y-x}$ hours
Answer
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Explanation
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