AMC 8 2023 Problem 11
AMC8 2023 年第 11 题
行程问题★★★☆☆
NASA's Perseverance Rover was launched on July 30, 2020. After traveling miles, it landed on Mars in Jezero Crater about 6.5 months later. Which of the following is closest to the Rover's average interplanetary speed in miles per hour?
美国国家航空航天局（NASA）的「毅力号」火星车于 2020 年 7 月 30 日发射。它在飞行了 292,526,838 英里后，于大约 6.5 个月后着陆在火星的耶泽罗陨石坑。以下哪一个选项最接近毅力号在星际航行中的平均速度（英里每小时）？
- A.6,000
- B.12,000
- C.60,000
- D.120,000
- E.600,000
正确答案 · Correct Answer
C
解析 · Solution
Solution 1
Note that 6.5 months is approximately hours. Therefore, the speed (in miles per hour) is As the answer choices are far apart from each other, we can ensure that the approximation is correct., SohumUttamchandani, MRENTHUSIASM.1
The rover traveled about miles. 6.5 months is about days. 200 days is about hours.
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