state gov BMC Clerk - Karyakari Sahayak Mock Test 2024 Quantitative Aptitude Time and Work Pipe and Cistern
One tap fills a water tank in 6 hours. While the second tap empties a tank in 4 hours. If both the taps are filled at the same time, in how much time will the tank be empty?
1
12
2
10
3
6
4
8