insurence exam NIACL Assistant (Pre + Mains) Mock Test 2024 (New) Quantitative Aptitude Time and Work Pipe and Cistern
A cistern has a leak at 7 / 12th height of tank. Pipe can fill the cistern in 30 hours, while if the leak was at bottom, it can empty the cistern in 36 hours. The time (in hours) to fill the cistern is?
1
87.5
2
92.5
3
90
4
86.5
5
None of these