Aptitude - Time and work - Discussion

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Q.

A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?                         
A. 23 days B. 37 days
C. 32 days D. 40 days

Answer: Option C
Explaination:

 


Discussion

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