engineering recuitment AAI Junior Executive (Common Cadre) Mock Test 2023 Quantitative Aptitude Time and Work Pipe and Cistern
Pipe X and Y can fill a tank in 8 hrs and 6 hrs respectively. Pipe R can empty the tank in 12 hrs. All the three pipes are opened simultaneously, and the tank is half full. In how much time the tank will be filled?
1
4.2 hrs
2
6 hrs
3
2.4 hrs
4
5 hrs
5
None of these