Teaching Rajasthan Basic Computer Instructor 2021 Mock Test Quantitative Aptitude Time and Work Pipe and Cistern
A cistern can be filled by a pipe in 10 hours. If there is a leak, it takes 2 hours more to fill it completely. If a cistern is full of water, in what time will it be empty?
1
60 hours
2
30 hours
3
20 hours
4
45 hours