Question
The total mass of 8 muffins and 4 wafers is 400 g. Each muffin has a mass twelve times as much as a wafer. Find the mass of a wafer.
4 m

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The total mass of 8 muffins and 4 wafers is 400 g. Each muffin has a mass twelve times as much as a wafer. Find the mass of a wafer.