state gov DSSSB Junior Assistant, Steno and LDC Mock Test 2023 - 24 Quantitative Aptitude Time and Work Pipe and Cistern
Two pipes A and B can fill a tank in 4 hours and 6 hours respectively, whereas pipe C can empty the full tank in 3 hours. When the tank is empty. Pipe A and B is opened for 2 hours, then pipe C is opened, In how many hours the tank will be filled after pipe C was opened?
1
\(2\dfrac{1}{2}\)
2
3
3
2
4
\(1\dfrac{1}{2}\)