AMC 8 1992 Problem 7
AMC8 1992 年第 7 题
奇偶性★★☆☆☆
Problem The digit-sum of 998 is 9+9+8=26. How many 3-digit whole numbers, whose digit-sum is 26, are even?
998 的各位数字之和是 9+9+8=26。有多少个三位正整数,其各位数字之和为 26,且为偶数?
- A.1
- B.2
- C.3
- D.4
- E.5
正确答案 · Correct Answer
A
解析 · Solution
解析整理中
继续练习