state gov Patna Civil Court Clerk/Reader Mock Test Series Quantitative Aptitude Time and Work Pipe and Cistern
A pipe can fill a pool in 3 hours, due to leakage in the bottom, it takes \(3\frac{1}{2}\) hours to fill it. In what time the leakage will empty the pool?
1
12 hours
2
21 hours
3
\(6\frac{1}{2}\) hours
4
\(10\frac{1}{2}\) hours