state gov Kolkata Police Constable Mock Test 2024 Quantitative Aptitude Time and Work Work Efficiency
X, Y and Z can do a piece of work in 46 days, 92 days and 23 days, respectively, X started the work. Y joined him after 2 days. If Z joined them after 8 days from the beginning then for how many days did X work?
1
21
2
18
3
13
4
16