state gov UP Police Head Operator (Radio Cadre) Mock Test Quantitative Aptitude Time and Work Work Efficiency
X takes 5 days more than Y and 9 days more than Z to finish a piece of work. X and Y can do a piece of work together in the same time in which the Z alone can do the work. In how many days X finishes the work?
1
20
2
16
3
10
4
15