BANK CBI Sub Staff (Safai Karmachari) Mock Test 2024 Quantitative Aptitude Time and Work Pipe and Cistern
A cistern is filled in 4 hours and it takes 6 hours when there is a leak in its bottom. How long will the leak take to empty the full cistern?
1
6 hrs
2
5 hrs
3
12 hrs
4
10 hrs
5
15 hrs