engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Quantitative Aptitude Time and Work Pipe and Cistern
Two pipes P and Q can fill a cistern in 18 and 24 minutes respectively. Both pipes are opened, but after some time, the slower pipe is closed. The cistern gets filled in 12 minutes from the start. When is the slower pipe closed?
1
After 8 minutes
2
After 10 minutes
3
After 9 minutes
4
After 6 minutes