BANK IBPS RRB Clerk 2025 Mock Test Series (Pre + Mains) Quantitative Aptitude Time and Work Pipe and Cistern
Three pipes A, B, and C can fill a tank in 12 hours, 15 hours, and 20 hours respectively. If pipe A is opened all the time and pipe B and C are open for one hour each alternately. Pipe B opened first then pipe C opened alternatively. At what time the tank will be full?
1
9 hours
2
8 hours
3
6 hours
4
7 hours
5
None of these