state gov AP Police SI (Pre+Mains) Mock Test 2022 Quantitative Aptitude Time and Work Pipe and Cistern
Two pipes X and Y can fill a cistern in 48 minutes and 64 minutes respectively. If both the pipes are opened together then, after how much time (in minutes) should Y need to be closed so that the tank will be filled in 36 minutes?
1
8
2
16
3
24
4
32