AMC 8 2011 Problem 6
AMC8 2011 年第 6 题
基本计数原理★★☆☆☆
In a town of 351 adults, every adult owns a car, motorcycle, or both. If 331 adults own cars and 45 adults own motorcycles, how many of the car owners do not own a motorcycle?
在一个有 351 个成年人的小镇,每个成年人都有汽车,摩托车或者两者兼具。若 331 人有汽车,45 人有摩托车,那么拥有汽车的人当中,有多少人没有摩托车?
- A.20
- B.25
- C.45
- D.306
- E.351
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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