engineering recuitment DRDO CEPTAM STA B Tier I (Sr. Technical Assistant) Mock Test 2022 Quantitative Aptitude Time and Work Pipe and Cistern
Two taps are filling a tank and 1 pipe emptying it. The first tap can fill ½ part of the tank in 1 h, the second tap can fill 1/3rd of the tank in 1 h. The pipe is used to empty the tank. After the taps and pipes are opened, 7/12 part of the tank can be filled in 1 h, then how long will the pipe take to empty the full tank?
1
2 h
2
6 h
3
5 h
4
4 h