other govt exam CCI Junior Commercial Executive & Junior Assistant 2024 Mock Tests Quantitative Aptitude Time and Work Work Efficiency
X , Y and Z can complete a work in 5 days, 15 days and 30 days, respectively. In how days can the work be completed if X is assisted by Y and Z together, on every second day?
1
5 days
2
4 days
3
7 days
4
6 days