2022 AMC 8 第 7 题
先试着解答 2022 AMC 8 第 7 题，然后核对你的答案与精心整理的解答，解答来自 LIVE by Po-Shen Loh。你也可以参加完整限时模拟考试、查看全部 2022 AMC 8 解答，或核对答案。
所有题目均经美国数学协会（MAA）官方合法授权使用。
7.
万维网在二十世纪九十年代刚流行时，下载速度最高约为每秒 千比特。以这个速度下载一首 兆字节的歌曲大约需要多少分钟？（注意一兆字节等于 千比特。）
When the World Wide Web first became popular in the 1990s, download speeds reached a maximum of about kilobits per second. Approximately how many minutes would the download of a -megabyte song have taken at that speed? (Note that there are kilobits in a megabyte.)
小提示：
先把兆字节转换成千比特
Convert megabytes to kilobits first
大提示：
用 千比特除以每秒 千比特，得到秒数
kilobits divided by kilobits per second gives seconds
解答：
歌曲大小为 千比特。以每秒 千比特下载，需要 秒，即 分钟。
正确答案是 B。
The song has kilobits. At kilobits per second, the download takes seconds, which is minutes.
Thus, the correct answer is B.
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