Aptitude - Time and work - Discussion

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Q.

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                         
A. A. 9x1/5 days B. B. 9x2/5 days
C. C. 9x3/5 days D. D. 10 days

Answer: Option C
Explaination:

 


Discussion

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