defence exam CRPF Head Constable Ministerial & ASI 2022 Mock Test Quantitative Aptitude Time and Work Pipe and Cistern
A pipe can fill a tank in 20 h. Due to a leak in the bottom, it is filled in 60 h. If the tank is full, in how much time will it be empty because of the leak?
1
15 hours
2
30 hours
3
20 hours
4
25 hours