SOLUTION: Mary can finish an embroidery work in 10 days. After working for 3 days, Mary's cousin joined and together they finished the embroidery in another 4 1/2 days. How many days can Mar

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Mary can finish an embroidery work in 10 days. After working for 3 days, Mary's cousin joined and together they finished the embroidery in another 4 1/2 days. How many days can Mar      Log On


   

Question 571268: Mary can finish an embroidery work in 10 days. After working for 3 days, Mary's cousin joined and together they finished the embroidery in another 4 1/2 days. How many days can Mary's cousin finish the work alone?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
Mary worked for 7.5 days (3 + 4.5) and did 75% (7.5 / 10) of the job

it took Mary's cousin 4.5 days to do 25% of the job