defence exam CISF Constable Fireman Mock Test 2024 Quantitative Aptitude Time and Work Pipe and Cistern
Water is filled in a container in such a manner that its volume doubles every 5 minutes. If it takes 30 minutes for the container to be full, in how much time will it be one-fourth full ?
1
7.5 min
2
15 min
3
20 min
4
17.5 min