1995 AMC 8 第 17 题
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17.
下表给出安维尔和克利奥纳两所小学各年级学生所占百分比:
| 安维尔 | |||||||
|---|---|---|---|---|---|---|---|
| 克利奥纳 |
安维尔有 名学生,克利奥纳有 名学生。两所学校合计,有百分之几的学生在 年级?
The table below gives the percent of students in each grade at Annville and Cleona elementary schools:
| Annville | |||||||
|---|---|---|---|---|---|---|---|
| Cleona |
Annville has students and Cleona has students. In the two schools combined, what percent of the students are in grade
小提示:
分别求每所学校的 年级学生人数
Find the number of grade- students at each school separately
大提示:
用两校合计的 年级人数除以总人数
Divide the combined grade- count by the total students
解答:
安维尔的六年级人数为 乘以 人;克利奥纳的六年级人数为 乘以 人。
合计为 人,占总人数 的 。
所以正确答案是 D。
Annville has of sixth graders, and Cleona has of sixth graders.
Combined, that is out of students, which is
Thus, the correct answer is D .
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