state gov DSSSB Junior Assistant, Steno and LDC Mock Test 2023 - 24 Quantitative Aptitude Time and Work Pipe and Cistern
Three pipes can fill a tank in 15 hours, 12 hours and 10 hours, respectively. If all the three pipes are opened simultaneously for 3 hours, then what percentage of the tank will remain unfilled?
1
17%
2
50%
3
33%
4
25%