In a group of 50 students, 20 like only math and 15 like only science. If the number of students who do not like any of the two subjects is double the number of students who like both subjects, find the number of students who like at most one subject by using Venn-Diagram.
In a survey of 400 people, 300 people drink only one drink out of tea and coffee, 50 people drink non of them. Find the number of people who drink both the drinks.
In a survey of a group of 180 students, 50 students say to like cricket game only, 30 students say to like basketball game only and 50 students say do not like both games.
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