engineering recuitment OSSC Combined Technical Services (ଓଡିଶା) Mock Test 2023-24 Quantitative Aptitude Time and Work Pipe and Cistern
Two inlet pipes separately fill a cistern in 20 minutes and 30 minutes respectively, but due to leakage, both the inlet pipe fill it in 15 minutes. If the inlet pipes are closed then, the leakage can empty the full cistern in how many minutes?
1
60 minutes
2
40 minutes
3
30 minutes
4
120 minutes