Question

Danica 想把她的模型车排成若干行，每行正好六辆。她现在有二十三辆模型车。为了能用这种方式排好所有车，她最少还需要买多少辆？

Danica wants to arrange her model cars in rows with exactly 6 cars in each row. She now has 23 model cars. What is the smallest number of additional cars she must buy in order to be able to arrange all her cars this way?

$1$

$2$

$3$

$4$

$5$

答案：A

知识点：整除性估算

难度评级：370

视频讲解：

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文字解答：

为了让 Danica 把模型车排成每行正好六辆，她拥有的模型车数量必须是 $6$ 的倍数。大于 $23$ 的最小这样的数是 $24$ ，所以她必须再买 $1$ 辆车。

所以正确答案是 A。

In order for Danica to arrange her model cars in rows of exactly six, the number of model cars she has must be a multiple of six. The smallest multiple of $6$ greater than $23$ is $24,$ so she must buy $1$ more car to attain this amount.

Thus, A is the correct answer.

2013 AMC 8 第 1 题

答案：A

难度评级：370

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文字解答：

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