railway RRB Junior Hindi Translator 2025 Mock Test Series Quantitative Aptitude Time and Work Pipe and Cistern
Two pipes P and Q together can fill a cistern in 4 hours. When opened separately, Q will take 6 hours more than P to fill the cistern. In how much time can P alone fill the cistern?
1
6 hours
2
5 hours
3
7 hours
4
8 hours