defence exam Army Cadet College (ACC) Previous Year Papers Mock Quantitative Aptitude Time and Work Work Efficiency
A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With the help of C, they did the job in 4 days only. Then, C alone can do the job in:
1
9 (1/5) days
2
9 (2/5) days
3
9 (3/5) days
4
10 days