defence exam CRPF Head Constable Ministerial & ASI 2022 Mock Test Quantitative Aptitude Time and Work Pipe and Cistern
A tap fills a cistern in 8 minutes and another tap empties it in 16 minutes. If both the taps are opened, then the time taken to fill it will be
1
12 minutes
2
16 minutes
3
10 minutes
4
None of the above