Question

从 $2011$ 年一月 $1$ 日开始，经过 $2011$ 分钟后是什么时间？

What time was it $2011$ minutes after the beginning of January $1,$ $2011?$

$1$ 月一日晚上 $9:31$

January $1$ at $9:31$ PM

$1$ 月一日晚上 $11:51$

January $1$ at $11:51$ PM

一月 $2$ 日凌晨 $3:11$

January $2$ at $3:11$ AM

一月 $2$ 日上午 $9:31$

January $2$ at $9:31$ AM

一月 $2$ 日下午 $6:01$

January $2$ at $6:01$ PM

答案：D

知识点：日期与时间单位换算

难度评级：770

解答：

$2011$ 除以 $60$ 的余数是 $31$ 。也就是说 $2011 = 60 \cdot 33 + 31$ ，所以 $2011$ 分钟等于 $33$ 小时 $31$ 分钟。

经过 $24$ 小时到达一月 $2$ 日，所以此时是 $2$ 日当天开始后的 $9$ 小时 $31$ 分钟。

所以正确答案是 D。

The remainder when $2011$ is divided by $60$ is $31.$ This means that $2011 = 60 \cdot 33 + 31,$ which means that $2011$ minutes is the same as $33$ hours and $31$ minutes.

$24$ hours takes us to January $2,$ so we get that we are $9$ hours and $31$ minutes into January $2.$

Thus, D is the correct answer.

2011 AMC 8 第 5 题

答案：D

难度评级：770

解答：

其他年份的第 5 题