BANK IBPS RRB PO Mock Test Series 2025 (Pre + Mains) Quantitative Aptitude Time and Work Pipe and Cistern
Three pipes A, B and C are attached to a tank. A can empty the tank in 12 hours, B can empty it in 15 hours and C can fill it in 3 hours. The tank was 1/3rd full at 10’o clock and pipes A and B were open at the same time. At 12’o clock someone opened C and turned off B. How much time is required to fill the tank completely after 12'o clock?
1
4 hours
2
58/15 hours
3
59/15 hours
4
57/15 hours
5
11/3 hours