state gov UP Police Assistant Operator (Radio Cadre) Mock Test Quantitative Aptitude Time and Work Work Efficiency
X can do a certain work in 30 days. Y is 20% more efficient than X, and Z is 25% less efficient than Y. Y and Z together completed 35% of the work. X alone completed the remaining work. In how many days was the entire work completed?
1
30
2
\(24 \frac{1}{2}\)
3
25
4
\(22 \frac{1}{2}\)