AMC8 2005
AMC8 2005 · Q6
AMC8 2005 · Q6. It mainly tests Decimals, Rounding & estimation.
Suppose d is a digit. For how many values of d is 2.00d5 > 2.005?
假设 d 是一个数字。有多少个 d 的值使 2.00d5 > 2.005？
(A)
0
0
(B)
4
4
(C)
5
5
(D)
6
6
(E)
10
10
Answer
Correct choice: (C)
正确答案：（C）
Solution
(C) The number $2.00d5$ is greater than $2.005$ for $d = 5, 6, 7, 8$ and $9$. Therefore, there are five digits satisfying the inequality.
(C) 数字 $2.00d5$ 在 $d = 5, 6, 7, 8$ 和 $9$ 时大于 $2.005$。因此，有五个数字满足该不等式。
Topics
Related Questions
Practice full AMC exams on amcdrill.
Try full-length practice and diagnostics at www.amcdrill.com.