state gov UP Police Head Operator (Radio Cadre) Mock Test Quantitative Aptitude Time and Work Work Efficiency
M is twice as efficient as N and thrice as efficient as O. If N finishes a piece of work in 6 days, in how many days M, N and O complete the same piece of work together?
1
15/11 days
2
4 days
3
3 days
4
18/11 days