AMC8 1994
AMC8 1994 · Q11
AMC8 1994 · Q11. It mainly tests Averages (mean), Arithmetic misc.
Last summer 100 students attended basketball camp. Of those attending, 52 were boys and 48 were girls. Also, 40 students were from Jones Middle School and 60 were from Clay Middle School. Twenty of the girls were from Jones Middle School. How many of the boys were from Clay Middle School?
去年夏天，有100名学生参加篮球夏令营。其中52名男孩，48名女孩。还有40名学生来自琼斯中学，60名来自克雷中学。20名女孩来自琼斯中学。克雷中学的男孩有多少名？
(A)
20
20
(B)
32
32
(C)
40
40
(D)
48
48
(E)
52
52
Answer
Correct choice: (B)
正确答案：（B）
Solution
Total girls 48, Jones girls 20, so Clay girls 28. Clay total 60, so Clay boys 60-28=32.
女孩总数48名，琼斯中学女孩20名，所以克雷中学女孩28名。克雷中学总数60名，所以克雷中学男孩60-28=32名。
Topics
Related Questions
Practice full AMC exams on amcdrill.
Try full-length practice and diagnostics at www.amcdrill.com.