BANK CBI Sub Staff (Safai Karmachari) Mock Test 2024 Quantitative Aptitude Time and Work Pipe and Cistern
Tap E fills a tank in 30 minutes and tap F to empty a tank in 60 minutes. When both are opened together, Find whether the tank will be filled up or emptied and in how many minutes?
1
50 minutes
2
40 minutes
3
20 minutes
4
60 minutes
5
5 minutes