state gov WBPSC Miscellaneous Services Mock Test 2023 Quantitative Aptitude Time and Work Work Efficiency
A can do \(\frac{1}{3}\) of a work in 5 days and B can do \(\frac{2}{5}\) of the work in 10 days. In how many days both A and B can do the work?
1
\(7 \frac{3}{4}\) days
2
\(9 \frac{3}{8}\) days
3
\(8 \frac{4}{5}\) days
4
10 days