Aptitude - Time and work - Discussion

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Q.

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?                         


A. 12 days B. 15 days
C. 16 days D. 18 days

Answer: Option B
Explaination:

 





Discussion

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