One tap can fill a cistern in 2 hours and another can empty the cistern in 3 hrs. How long will they take to fill the cistern ifboth the taps are opened?

One tap can fill a cistern in 2 hours and another can empty the cis

1.	One tap can fill a cistern in 2 hours and another can empty the cistern in 3 hrs. How long will they take to fill the cistern ifboth the taps are opened?
A.	6hrs
B.	8hrs
C.	4hrs
D.	None of these
Answer» B. 8hrs

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One tap can fill a cistern in 2 hours and another can empty the cistern in 3 hrs. How long will they take to fill the cistern ifboth the taps are opened?

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