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A survey of 500 households found that 450 households had a microwave oven, 300 had a food processor, and 150 had a trash compactor. Each of the 500 households had at least one of the appliances, and more than 100 households had all three appliances. Which of the following could be the number of households that had a food processor and a trash compactor but no microwave oven?
Indicate all such numbers.
Indicate all such numbers.
A,B显示答案
· 相关考点
6.1.5 三集合问题
6.1.5 三集合问题
以上解析由 考满分老师提供。
