state gov UP Police Head Operator (Radio Cadre) Mock Test Quantitative Aptitude Time and Work Pipe and Cistern
Both A and B taps fill a bucket in 12 minutes and 15 minutes respectively. How long will it take to fill the bucket if both taps are opened simultaneously?
1
6 minutes 40 seconds
2
8 minutes 25 seconds
3
7 minutes 15 seconds
4
7 minutes 25 seconds