AMC 8 2019 Problem 13
AMC8 2019 年第 13 题
整除与因数★★★☆☆
A ''palindrome'' is a number that has the same value when read from left to right or from right to left. (For example, 12321 is a palindrome.) Let N be the least three-digit integer which is not a palindrome but which is the sum of three distinct two-digit palindromes. What is the sum of the digits of N?
回环数是指从左向右读和从右向左读,读数是一样的数(例如,12321 是个回环数)。N 是满足以下条件的最小三位整数:它不是个回环数,并且它是 3 个不同的两位回环数的和。问 N 的各个位上的数字之和是多少?
- A.2
- B.3
- C.4
- D.5
- E.6
正确答案 · Correct Answer
A
解析 · Solution
解析整理中
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