railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Time and Work Pipe and Cistern
There are 3 taps which completely fill the tank in 9 hours, 12 hours and 18 hours. They are opened together but the third tap is closed 2 hours before the tank is completely filled. After how much time will the tank be completely filled?
1
40/9 hours
2
44/9 hours
3
48/9 hours
4
52/9 hours