Teaching Jharkhand (JSSC) PRT (1 to 5) Mock Test 2023 Quantitative Aptitude Time and Work Pipe and Cistern
A can fill the tank in 3 hours and B can empty the tank in 6 hours. How much time it will take to fill the tank if both pipes are open together?
1
3 hours
2
6 hours
3
2 hours
4
1 hours