AMC 8 1994 Problem 11

AMC8 1994 年第 11

基本计数原理★★★☆☆
Problem Last summer 100 students attended basketball camp. Of those attending, 52 were boys and 48 were girls. Also, 40 students were from Jonas Middle School and 60 were from Clay Middle School. Twenty of the girls were from Jonas Middle School. How many of the boys were from Clay Middle School?
去年夏天 100 名学生参加了篮球夏令营。参加者中 52 名男生,48 名女生。另有 40 名来自 Jonas 中学,60 名来自 Clay 中学。女生中有 20 名来自 Jonas 中学。男生中有多少名来自 Clay 中学?
  1. A.20
  2. B.32
  3. C.40
  4. D.48
  5. E.52

正确答案 · Correct Answer

B

解析 · Solution

解析整理中

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