state gov UP Police Constable Mock Test Series 2025 Quantitative Aptitude Time and Work Work Efficiency
A can do a certain job in 12 days. B is 60% more efficient than A. How many days does B alone take to do the same job ?
1
5\(\frac{1}{2}\) (Five and half) days
2
7\(\frac{1}{2}\) (Seven and half) days
3
9\(\frac{1}{2}\) (Nine and half) days
4
None of these