railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Quantitative Aptitude Time and Work Pipe and Cistern
Two pipes can fill a cistern in 2 and 3 hours respectively. If both the pipes are opened together, then the time taken to fill the cistern is
1
2 hrs 30 minutes
2
5 hrs
3
50 minutes
4
1 hr 12 minutes