defence exam DGAFMS Group C 2025 Mock Test Series Quantitative Aptitude Time and Work Pipe and Cistern
Pipes M and N can alone fill and alone empty the tank in 12 hours and 24 hours respectively. There is a leakage at the bottom of tank which can empty the tank in 72 hours. If all pipes opened together, then in how much time tank will filled?
1
48 hours
2
30 hours
3
36 hours
4
24 hours