state gov OSSSC RI, ARI, AMIN, SFS, ICDS Supervisor Combined Mock Test 2023-25 Quantitative Aptitude Time and Work Work Efficiency
A takes 8 hours to copy a 50-page manuscript while B can copy the same manuscript in 6 hours. How many hours would it take them to copy a similar 100-page manuscript, if they work together?
1
\(9\frac{5}{7}\) hours
2
14 hours
3
\(6\frac{6}{7}\) hours
4
9 hours