AMC 8 2025 Problem 19
AMC8 2025 年第 19 题
行程问题★★★☆☆
Two towns, and , are connected by a straight road that is 15 miles long. Travelling from city to town , the speed limit changes every 5 miles: from 25 to 40 to 20 miles per hour (mph). Two cars, one at town and one at town , start moving toward each other at the same time. They drive at exactly the speed limit in each portion of the road. How far from town , in miles, will the two cars meet?
镇和B镇之间由一条15英里长的笔直公路相连。从A镇行驶到B镇，限速每5英里变化一次：依次为25英里/小时、40英里/小时和20英里/小时。两辆汽车，一辆在A镇，另一辆在B镇，它们同时出发相向而行。两车在各路段上都严格按照限速行驶。请问两车将在距离A镇多少英里处相遇？
- A.7.75
- B.8
- C.8.25
- D.8.5
- E.8.75
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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