Aptitude - Time and work - Discussion

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Q.

A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:                         
A. 20 days B. 22 1/2 days
C. 25 days D. 30 days

Answer: Option D
Explaination:

 


Discussion

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