j015
13.11.2020 •
Mathematics
In a language Institute all the students study either Japanese or Korean or Hebrew. In a class of 55 students, 21 students study Japanese and Korean, 23 study Korean and Hebrew, 25 study Japanese and Hebrew. If 18 students study only one language, how many students are studying all three languages?
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Ответ:
2. y< 6x/4+3