defence exam Agniveer Army Tradesman Mock Test Series 2025 Quantitative Aptitude Time and Work Pipe and Cistern
Pipe A can fill a tank in 5 hours, Pipe B in 10 hours, and Pipe C in 30 hours. If all the pipes are open, in how many hours will the tank be filled?
1
2
2
2.5
3
3
4
3.5