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2007 AMC 10B Question 1

AMC10 · 2007 AMC 10B

Question 1

Isabella’s house has $3$ bedrooms. Each bedroom is $12$ feet long, $10$ feet wide, and $8$ feet high. Isabella must paint the walls of all the bedrooms. Doorways and windows, which will not be painted, occupy $60$ square feet in each bedroom. How many square feet of walls must be painted?
  1. $678$
  2. $768$
  3. $786$
  4. $867$
  5. $876$