state gov AP Police SI (Pre+Mains) Mock Test 2022 Quantitative Aptitude Time and Work Pipe and Cistern
Three taps A,B and C can fill a tank in 12, 15 and 30 hours respectively. The tap A is to be kept open all the time and B and C are to be opened for one hour alternately. When will the tank become full ?
1
7 hrs
2
53/7 hrs
3
55/7 hrs
4
52/7 hours