AMC 8 1986 Problem 19
AMC8 1986 年第 19 题
行程问题★★★☆☆
Problem At the beginning of a trip, the mileage odometer read 56,200 miles. The driver filled the gas tank with 6 gallons of gasoline. During the trip, the driver filled his tank again with 12 gallons of gasoline when the odometer read 56,560. At the end of the trip, the driver filled his tank again with 20 gallons of gasoline. The odometer read 57,060. To the nearest tenth, what was the car's average miles-per-gallon for the entire trip?
旅行开始时，里程表读数为 56,200 英里。驾驶员给油箱加了 6 加仑汽油。旅行中，当里程表读数为 56,560 时，驾驶员又加了 12 加仑汽油。旅行结束时，驾驶员再次加满 20 加仑汽油。里程表读数为 57,060。精确到十分位，汽车整个旅行的平均每加仑英里数是多少？
- A.22.5
- B.22.6
- C.24.0
- D.26.9
- E.27.5
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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