Question
A box of cookies cost $14 while a box of puffs cost $20. Each box contained either 8 cookies or 10 puffs. Xuan bought the same number of cookies and puffs. She paid $50 more for the puffs. How many boxes of cookies did she buy?
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A box of cookies cost $14 while a box of puffs cost $20. Each box contained either 8 cookies or 10 puffs. Xuan bought the same number of cookies and puffs. She paid $50 more for the puffs. How many boxes of cookies did she buy?