BANK CBI Sub Staff (Safai Karmachari) Mock Test 2024 Quantitative Aptitude Time and Work Pipe and Cistern
A pipe can empty a tank in 40 minutes. A second pipe with diameter twice as much that of the first is also attached with the tank to empty it. The two together can empty the tank in
1
8 min
2
13 min
3
30 min
4
38 min
5
12 min