AMC 8 2012 Problem 16

AMC8 2012 年第 16 题

基本计数原理★★★☆☆

Each of the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 is used only once to make two five-digit numbers so that they have the largest possible sum. Which of the following could be one of the numbers?

用数字 0,1,2,3,4,5,6,7,8,9 组成两个 5 位数（每个数字只使用一次），使这两个五位数的和最大。下面哪个可能是这两个数之一？

A. $\hspace{.05in}76531$
B. $\hspace{.05in}86724$
C. $\hspace{.05in}87431$
D. $\hspace{.05in}96240$
E. $\hspace{.05in}97403$

正确答案 · Correct Answer

C

解析 · Solution

解析整理中

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