AMC8 1999

AMC8 1999 · Q19

AMC8 1999 · Q19. It mainly tests Fractions, Rounding & estimation.

The drummer gets sick. The concert is cancelled. Walter and Gretel must make enough pans of cookies to supply 216 cookies. There are 8 tablespoons in a stick of butter. How many sticks of butter will be needed? (Some butter may be left over, of course.) [recipe: 3 tbsp butter]

鼓手生病了。音乐会取消了。Walter 和 Gretel 必须做足够的饼干盘来提供 216 块饼干。一根黄油棒有 8 汤匙。需要多少根黄油棒？（当然可能会有一些黄油剩余。）[配方：3 汤匙黄油]

(A) 5 5

(B) 6 6

(D) 8 8

(E) 9 9

Answer

Correct choice: (B)

正确答案：（B）

Solution

Answer (B): Since $216 \div 15 = 14.4$, they will have to bake 15 recipes. This requires $15 \times 3 = 45$ tablespoons of butter. So, $45 \div 8 = 5.625$, and 6 sticks are needed.

答案（B）：因为 $216 \div 15 = 14.4$，他们需要烤 15 份配方。这需要 $15 \times 3 = 45$ 汤匙黄油。因此，$45 \div 8 = 5.625$，需要 6 条黄油。

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