AMC 8 2011 Problem 10
AMC8 2011 年第 10 题
方程与不等式★★☆☆☆
The taxi fare in Gotham City is $2.40 for the first mile and additional mileage charged at the rate $0.20 for each additional 0.1 mile. You plan to give the driver a $2 tip. How many miles can you ride for $10 ?
高谭市的出租车前 英里收费 2.40 美元，后面每增加 0.1 英里收费 0.20 美元。你还打算给司机 2 美元小费，那么 10 美元你能坐多少英里？
- A.3.0
- B.3.25
- C.3.3
- D.3.5
- E.3.75
正确答案 · Correct Answer
C
解析 · Solution
Solution 1
Including a 22 tip, a 0.5 0.5 mile ride would cost 4.40 4.40. The remaining 5.60 5.60 would take you an additional 0.1 × 5.60 0.2 = 2.80 0.1× 0.2 5.60 =2.80 miles, so the total distance is 0.5 + 2.8 = 3.3 0.5+2.8=3.3 miles. Answer: 𝐶 C .
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