engineering recuitment DRDO CEPTAM STA B Tier I (Sr. Technical Assistant) Mock Test 2022 Quantitative Aptitude Time and Work Pipe and Cistern
Three taps A, B and C together can fill an empty cistern in 5 minutes. The tap A alone can fill it in 10 minutes and the tap B alone in 20 minutes. How long will the tap C alone take to fill it?
1
8 minutes
2
12 minutes
3
20 minutes
4
40 minutes