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In a certain city, each of the 30 days last April was classified as either sunny or cloudy. There were 24 sunny days in the city last April, and there were 20 days with a daily maximum temperature of at least 80℉. Which of the following statements individually provide(s) sufficient additional information to determine the number of cloudy days in the city last April with a maximum temperature of less than 80?
Indicate all such statements.
Indicate all such statements.
A,B,C显示答案
· 相关考点
6.1.3 九宫格解双重叠应用题
【相关术语】 • A, not A：A与非A • B, not B：B与非B • A, non A：A与非A • have A, have never A：A与非A • scented, unscented：有味道VS无味道 • male, female：男VS女 • on campus, off campus：住校VS不住校 【考察角度】 考察角度一：九宫格求具体值 • 当题目中存在两个概念分别的正向、反向描述 • 第⼀步：画出九宫格 • 第⼆步：按照A与非A，B与非B两种分类标准，将所有数据分成四⼤类 • 第三步：填⼊题⽬给出数据，计算剩余数据 考察角度二：九宫格求范围 • 当题目中存在两个概念分别的正向、反向描述 • 第⼀步：画出九宫格 • 第⼆步：按照A与非A，B与非B两种分类标准，将所有数据分成四⼤类 • 第三步：填⼊题⽬给出数据，根据每行每列的部分量≤每行每列的总量，计算剩余数据的取值范围
以上解析由 考满分老师提供。
