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Baking a tray of corn muffins takes 8 cups of milk and 5 cups of wheat flour .Baking a tray of muffins takes 4 cups of milk and 5 cups of wheat flour.A baker has 40 cups of milk and 35 cups of wheat flour.He makes $7 profit per tray of corn muffins and $5 profit per tray of bran muffins

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