Difference between revisions of "1999 AMC 8 Problems/Problem 13"
(Created page with "The answer is (C). First, find the total amount of the girl's ages and add it to the total amount of the boy's ages. It equals 540. You have to see what can give you 17 when you ...") |
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Revision as of 11:19, 22 July 2011
The answer is (C). First, find the total amount of the girl's ages and add it to the total amount of the boy's ages. It equals 540. You have to see what can give you 17 when you divide by 40. So, you do 
Then you do 
The 5 adult's ages should add up to 140. You then do 
. So, the answer is (C).
