A glass containing water has two holes. The 1st hole alone empties the glass in 9 minutes and 2nd hole alone empties the glass in 3 minutes. If water leaks out a constant rate, how many minutes will it take if both the holes together empty the glass?

A glass containing water has two holes. The 1st hole alone empties th

1.	A glass containing water has two holes. The 1st hole alone empties the glass in 9 minutes and 2nd hole alone empties the glass in 3 minutes. If water leaks out a constant rate, how many minutes will it take if both the holes together empty the glass?
A.	\(\frac{1}{4}\)
B.	\(2 \frac{2}{4}\)
C.	\(3 \frac{1}{4}\)
D.	\(2 \frac{1}{4}\)
Answer» E.

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A glass containing water has two holes. The 1st hole alone empties the glass in 9 minutes and 2nd hole alone empties the glass in 3 minutes. If water leaks out a constant rate, how many minutes will it take if both the holes together empty the glass?

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