state gov DSSSB Junior Secretariat Assistant Mock Test 2021 (Old) Quantitative Aptitude Time and Work Pipe and Cistern
Three filling pipes can fill a tank in 34, 68 and 51 minutes respectively. An emptying pipe can empty the same tank in 17 minutes. Find the total time taken by the pipe to fill it when all the pipes are opened simultaneously.
1
200
2
208
3
204
4
210