state gov Bihar Police Prohibition Constable 2022 Mock Test Series Quantitative Aptitude Time and Work Work Efficiency
If A can do a piece of work in 8 days, B can do it in 10 days and C can do it in 20 days, then in how many days can A, B and C together do the same work?
1
4
2
3
3
\(3\frac{7}{{11}}\)
4
\(2\frac{7}{{11}}\)