Civil Services TNPSC Group 1 (New Syllabus) Mock Test 2025 Quantitative Aptitude Time and Work Pipe and Cistern
A pump can fill a tank with water in 2 hours. Because of a leak, it takes 6 hours to fill the tank. The leak can drain all the water from the tank in:
1
3 hours
2
12 hours
3
6 hours
4
2.5 hours