BANK IBPS RRB Clerk 2025 Mock Test Series (Pre + Mains) Quantitative Aptitude Time and Work Pipe and Cistern
A can fill the tank in 15 hours and B can fill the tank in 60 hours in how many hours both can fill half of the tank when they work alternatively starting from A.
1
10
2
12
3
15
4
20
5
None