state gov Bihar Police Prohibition Constable 2022 Mock Test Series Quantitative Aptitude Time and Work Work Efficiency
A is twice as efficient as B and C is thrice as efficient as B. What is the ratio of the number of days taken by A, B and C, when they work individually?
1
3 : 5 : 2
2
5 : 6 : 2
3
3 : 6 : 5
4
3 : 6 : 2