engineering recuitment OSSC Combined Technical Services (ଓଡିଶା) Mock Test 2023-24 Quantitative Aptitude Time and Work Pipe and Cistern
Two pipes A and B can fill a tank in 18 minutes and 24 minutes respectively. If both the pipes are opened simultaneously, then after how much time should pipe B be closed so that the tank is full in 12 minutes?
1
6 minutes
2
9 minutes
3
8 minutes
4
5 minutes