1.

A container has two holes. The 1st hole alone empties the container in 15 minutes and 2nd hole alone empties the container in 10 minutes. If water leaks out at a constant rate, how long (in minutes) does it take if both the holes together empty the container?

A. 6
B. \(\frac{1}{6}\)
C. \(\frac{1}{7}\)
D. 7
Answer» B. \(\frac{1}{6}\)


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