defence exam BSF Constable (Tradesmen) 2023 Mock Test Quantitative Aptitude Time and Work Pipe and Cistern
Two pipes A and B can fill a tank in 12 hours and 8 hours respectively while a third pipe C can empty the full tank in 16 hours. All the pipes are opened for 4 hours and then C is closed. Find the time in which the tank will full?
1
3 hour
2
7 hour
3
5 hour
4
6 hour