defence exam Agniveer Army GD Mock Test Series 2025 Quantitative Aptitude Time and Work Work Efficiency
A can do a piece of work in 18 days. B can do this work in 24 days. A started the work alone. After how many days should B join him, so that the work is finished in 15 days?
1
11 days
2
19 days
3
13 days
4
14 days