Teaching EMRS JSA (Junior Secretariat Assistant) Mock Test Series 2023 Quantitative Aptitude Time and Work Pipe and Cistern
Two taps A and B can fill a tank alone in 20 minutes and 30 minutes respectively. If one outlet pipe C is opened, all three together can fill the same tank in 60 minutes. How much time will tap C alone take to empty the same tank?
1
30 minute
2
20 minute
3
25 minute
4
15 minute