state gov Bihar SSC (BSSC) Inter Level Mock Test 2024 - 25 Quantitative Aptitude Time and Work Pipe and Cistern
If two pipes A and B can fill a tank in 10 minutes and 15 minutes respectively, and both the pipes are opened together, then find in how much time it will take to fill a tank.
1
5 minutes
2
12 minutes
3
6 minutes
4
15 minutes