AMC 8 2015 Problem 15

AMC8 2015 年第 15

基本计数原理★★★☆☆
At Euler Middle School, 198 students voted on two issues in a school referendum with the following results: 149 voted in favor of the first issue and 119 voted in favor of the second issue. If there were exactly 29 students who voted against both issues, how many students voted in favor of both issues?
在 Euler 中学,198 名学生参与了一次针对两项议题的全校投票,结果如下:149 名学生赞成第一项议题,119 名学生赞成第二项议题。如果恰好有 29 名学生对这两项议题都反对,那么有多少名学生对这两项议题都赞成?
  1. A.49
  2. B.70
  3. C.79
  4. D.99
  5. E.149

正确答案 · Correct Answer

D

解析 · Solution

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