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Mathematics, 24.07.2021 16:40 ftshaechan

50 students in a class were asked at the beginning of the week what they did at the weekend. 18 read their books, while 28 watched films, and 7 neither read their books nor watched films. How many students both read their books and watched films?​

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50 students in a class were asked at the beginning of the week what they did at the weekend. 18 read...

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