AMC 8 2000 Problem 9
AMC8 2000 年第 9 题
表达式与运算★★☆☆☆
Three-digit powers of 2 and 5 are used in this "cross-number" puzzle. What is the only possible digit for the outlined square?
在这个交叉数字拼图中使用了 2 和 5 的幂，且都是三位数。则黑体所示的正方形内唯一可能的数字是多少？ ACROS|横着 DOWN|竖着 Problem 10 Ara and Shea were once the same height. Since then Shea has grown 20% while Ara has grown half as many inches as Shea. Shea is now 60 inches tall. How tall, in inches, is Ara now? Ara 和 Shea 以前身高一样。自那以后，Shea 身高增高了 20％，而 Ara 增长的高度是 Shea 增长高度的一半。Shea 现在身高 60 英寸，那么 Ara 现在身高是多少英寸？
- A.0
- B.2
- C.4
- D.6
- E.8
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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