AMC 8 2022 Problem 9
AMC8 2022 年第 9 题
数列与规律★★☆☆☆
A cup of boiling water ( ) is placed to cool in a room whose temperature remains constant at . Suppose the difference between the water temperature and the room temperature is halved every 5 minutes. What is the water temperature, in degrees Fahrenheit, after 15 minutes?
一杯开水（212 华氏度）被放置在一个温度恒定为 68 华氏度的房间里进行冷却。假设水的温度和房间温度的差值每 5 分钟减半。问在 15 分钟后，水的温度是多少华氏度？
- A.
- B.
- C.
- D.
- E.
正确答案 · Correct Answer
B
解析 · Solution
解析整理中
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