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2013 AMC 12B Question 5

AMC12 · 2013 AMC 12B

Question 5

The average age of $33$ fifth-graders is $11.$ The average age of $55$ of their parents is $33.$ What is the average age of all of these parents and fifth-graders?
  1. $22$
  2. $23.25$
  3. $24.75$
  4. $26.25$
  5. $28$