engineering recuitment OSSC Combined Technical Services (ଓଡିଶା) Mock Test 2023-24 Quantitative Aptitude Time and Work Pipe and Cistern
Two pipe P and Q can fill a tank in 30 min and 36 min respectively, if pipe Q is opened initially, then how much time after pipe P will also be opened so that the tank is full in 18 minutes?
1
15 min
2
3 min
3
2 min
4
8 min