AMC 8 2015 Problem 3
AMC8 2015 年第 3 题
行程问题★☆☆☆☆
Jack and Jill are going swimming at a pool that is one mile from their house. They leave home simultaneously. Jill rides her bicycle to the pool at a constant speed of 10 miles per hour. Jack walks to the pool at a constant speed of 4 miles per hour. How many minutes before Jack arrives does Jill arrive?
和 Jill 要去距离他们家 1 英里的游泳池去游泳。他们同时从家出发。Jill 以 10 英里每小时的速度骑车去泳池，Jack 以 4 英里每小时的速度走过去。那么 Jill 比 Jack 早到多少分钟？
- A.5
- B.6
- C.8
- D.9
- E.10
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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