SOLUTION: If the average of 57 numbers is 85, what number must be added to give an average of 87?

Algebra ->  Average -> SOLUTION: If the average of 57 numbers is 85, what number must be added to give an average of 87?      Log On


   

Question 678407: If the average of 57 numbers is 85, what number must be added to give an average of 87?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If the average of 57 numbers is 85, what number must be added to give an average of 87?
---------------
(57*85 + n)/58 = 87
n + 4845 = 58*87 = 5046
n = 201