SOLUTION: John bought 18 pizzas. Mike bought 12 pizzas. What percentage of the total number of pizza did mike buy?

Question 822411: John bought 18 pizzas. Mike bought 12 pizzas. What percentage of the total number of pizza did mike buy?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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12/(18+12) * 100 = 40%
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