选择题
2026 AMC 8 Problem 5: Road Trip Lunch Break
Casey went on a road trip that covered 100 miles, stopping only for a lunch break along the way. The trip took 3 hours in total and her average speed while driving was 40 miles per hour. In minutes, how long was the lunch break?
2026 AMC 8 第5题：公路旅行午休
凯西进行了一次 100 英里的公路旅行，沿途只停下来吃午饭。此次行程总共耗时 3 个小时，她的平均驾驶速度为每小时 40 英里。分分钟，午休时间是多久
A.
15
B.
30
C.
40
D.
45
E.
60