AMC8 2001

AMC8 2001 · Q13

AMC8 2001 · Q13. It mainly tests Percent, Arithmetic misc.

Of the 36 students in Richelle's class, 12 prefer chocolate pie, 8 prefer apple, and 6 prefer blueberry. Half of the remaining students prefer cherry pie and half prefer lemon. For Richelle's pie graph showing this data, how many degrees should she use for cherry pie?

Richelle 班上有 36 名学生，其中 12 名喜欢巧克力派，8 名喜欢苹果派，6 名喜欢蓝莓派。剩下的学生有一半喜欢樱桃派，一半喜欢柠檬派。在 Richelle 的派图中，樱桃派应该使用多少度？

(A) 10 10

(B) 20 20

(D) 50 50

(E) 72 72

Answer

Correct choice: (D)

正确答案：（D）

Solution

Since $12 + 8 + 6 = 26$， there are $36 - 26 = 10$ children who prefer cherry or lemon pie. These ten are divided into equal parts of 5 each. $$\frac{5}{36} \times 360^\circ = 5 \times 10^\circ = 50^\circ.$$

因为 $12 + 8 + 6 = 26$，所以有 $36 - 26 = 10$ 名学生喜欢樱桃派或柠檬派。这 10 人平分，每种各 5 人。$$\frac{5}{36} \times 360^\circ = 5 \times 10^\circ = 50^\circ$$。

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