engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Quantitative Aptitude Time and Work Pipe and Cistern
Pipe A can fill a tank in 3 hours. But there is a leakage also, due to which it takes 3.5 hours for the tank to be filled. How much time will the leakage take in emptying the tank if the tank is filled initially?
1
21 hours
2
20 hours
3
18 hours
4
10.5 hours