state gov DSSSB Warder, Assistant Superintendent, Matron Mock Test 2024 Quantitative Aptitude Time and Work Pipe and Cistern
Two pipes X and Y can individually fill a tank in 48 and 72 minutes respectively. If they are opened simultaneously, how long would it take for the tank to fill?
1
24 minutes
2
60 minutes
3
28.8 minutes
4
39.4 minutes