Upper Elementary:
Question: Katie is comparing the prices of 4 different pies. A cherry pie costs $6.00. A chocolate cream pie costs $11.00. A blueberry pie costs $7.00. A peach pie costs the average price of all 4 of the pies. How much does the peach pie cost?
Answer: $8.00
Solution: If the average of all 4 pies is the same as the price of the peach pie, then the average of the first 3 pies must be equal to the price of the peach pie. To find the average price of the pies, we add the prices of the first 3 pies together, then divide by 3.
$6.00 + $11.00 + $7.00 = $24.00
$24.00 ÷ 3 = $8.00
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