Aptitude - Time and work - Discussion

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Q.

A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:                         
A. 15 days B. 20 days
C. 25 days D. 30 days

Answer: Option C
Explaination:

 


Discussion

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