Teaching Rajasthan Basic Computer Instructor 2021 Mock Test Quantitative Aptitude Time and Work Work Efficiency
X and Y together can complete a piece of work in 12 days, Y and Z can do it 18 days and X and Z can complete the same work in 15 days. If X, Y and Z can together complete the work, approximately how many days will be required to complete the work?
1
12
2
18
3
14
4
10