campus placement TCS NQT Mock Test (Cognitive Ability) Quantitative Aptitude Time and Work Pipe and Cistern
A pump can fill a tank in six hours. Due to a leak in the bottom of the tank, it takes eight hours to fill. When the tank is full, how much time it will take to empty the tank?
1
22 hours
2
24 hours
3
23 hours
4
25 hours