AMC 8 1992 Problem 11

AMC8 1992 年第 11 题

统计与数据图表★★★☆☆
The bar graph shows the results of a survey on color preferences. What percent preferred blue?
柱状图显示了一项颜色偏好调查的结果。偏好蓝色的百分比是多少?
AMC 8 1992 Problem 11 figure
  1. A.20%
  2. B.24%
  3. C.30%
  4. D.36%
  5. E.42%

正确答案 · Correct Answer

B

解析 · Solution

Solution 1

The total frequency is 50+60+40+60+40=250, with the blue frequency of 60. Therefore, the precentage that preferred blue is 60250=(B) 24%\displaystyle \frac{60}{250} = \text{(B) 24\%}.

继续练习

真题版权归属 MAA(AMC)。本站仅供学习用途。版权方如有异议,请联系本站予以下架。

Problems © MAA (AMC). This site is for study purposes only. Rightsholders may contact us for removal.