BANK IBPS RRB Clerk 2025 Mock Test Series (Pre + Mains) Quantitative Aptitude Time and Work Pipe and Cistern
6 taps are fitted in a tank in which some are inlet taps and some are outlet taps. Each inlet tap can fill the tank in 18 hours and each outlet tap can empty the tank in 54 hours. Find the number of outlet taps if the whole tank is filled in 9 hours when all the 6 taps are open.
1
2
2
6
3
7
4
4
5
3