Aptitude - Time and work - Discussion

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Q.

A man can do a piece of work in 5 days, but with the help pf his son, he can do it in 3 days. In what time can the son do it alone?                         
A. 6x1/2 days B. 7 days
C. 7x1/2 days D. 8 days

Answer: Option C
Explaination:

 


Discussion

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