SSC SSC Selection Post (Phase 13) 2025 Mock Test Quantitative Aptitude Time and Work Pipe and Cistern
Two pipes X and Y can fill a tank in 14 hours and 21 hours, respectively. Both pipes are opened simultaneously to fill the tank. In how many hours will the empty tank be filled?
1
8 (2/5)
2
6 (2/5)
3
7 (2/5)
4
5 (2/5)