2002 AMC 8 第 7 题

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所有题目均经美国数学协会(MAA)官方合法授权使用。

7.

Sawyer 老师班上的学生被要求对五种糖果进行口味测试。每个学生选择一种糖果。图中显示了他们偏好的条形图。她班上选择糖果 EE 的学生占百分之多少?

The students in Mrs. Sawyer's class were asked to do a taste test of five kinds of candy. Each student chose one kind of candy. A bar graph of their preferences is shown. What percent of her class chose candy E?E?

55

1212

1515

1616

2020

答案:E
知识点:数据与图表解读百分数
难度评级:860
解答:

班上共有 6+8+4+2+5=25 6 + 8 + 4 + 2 + 5 = 25 名学生。选择 EE 的百分比为 100525=1005=20%. 100 \cdot \dfrac{5}{25} = \dfrac{100}{5} = 20 \%.

所以正确答案是 E

There are a total of 6+8+4+2+5=25 6 + 8 + 4 + 2 + 5 = 25 students in the class. The percent that chose EE is 100525=1005=20%. 100 \cdot \dfrac{5}{25} = \dfrac{100}{5} = 20 \%.

Thus, E is the correct answer.

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