AMC 8 2008 Problem 5
AMC8 2008 年第 5 题
行程问题★★☆☆☆
Barney Schwinn notices that the odometer on his bicycle reads 1441, a palindrome, because it reads the same forward and backward. After riding 4 more hours that day and 6 the next, he notices that the odometer shows another palindrome, 1661. What was his average speed in miles per hour?
注意到他自行车上的里程表读数为 1441，这是个回环数，因为它从前向后读和从后向前读读数都相同。那天又继续骑了 4 小时和第二天骑了 6 小时后，他注意到里程表显示了另一个回环数 1661。他的平均时速是多少英里每小时？
- A.15
- B.16
- C.18
- D.20
- E.22
正确答案 · Correct Answer
E
解析 · Solution
解析整理中
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