defence exam DGAFMS Group C 2025 Mock Test Series Quantitative Aptitude Time and Work Work Efficiency
A, B, and C alone can do a piece of work in 9, 12 and 18 days, respectively. They all started the work together, but A left after 3 days. In how many days, was the total work completed?
1
2
2
\(\frac{5}{2}\)
3
\(\frac{24}{5}\)
4
\(\frac{9}{5}\)