AMC 8 2000 Problem 1
AMC8 2000 年第 1 题
表达式与运算★☆☆☆☆
Aunt Anna is 42 years old. Caitlin is 5 years younger than Brianna, and Brianna is half as old as Aunt Anna. How old is Caitlin?
Anna 阿姨现在 42 岁，Caitlin 比 Brianna 小 5 岁，Brianna 的年龄是 Anna 阿姨的一半。问 Caitlin 多大？
- A.15
- B.16
- C.17
- D.21
- E.37
正确答案 · Correct Answer
B
解析 · Solution
Solution 1
If Brianna is half as old as Aunt Anna, then Brianna is years old, or 21 years old. If Caitlin is 5 years younger than Brianna, she is 21-5 years old, or 16. So, the answer is
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