BANK IBPS PO 2025 (Pre + Mains) Mock Test Series Quantitative Aptitude Time and Work Pipe and Cistern
Three pipes X, Y and Z can fill a tank alone in 1/3 hr, 1/4 hr and 1/5 hr respectively. If the pipe Z is filling the tank all the time and other pipes X and Y are opened to fill one minute alternatively starting from Y, how much time takes to fill the tank?
1
5 min
2
7.5 min
3
7 min
4
8 min
5
6 min