29-04-2022
Mathematics

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12. In a language survey of students, it is found that 80 students know English, 60 know
French, 50 know German, 30 know English and French, 20 know French and German, 15 know English and German and 10 students know all the three languages. How many students know at least one language ?

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29-04-2022

Answer:

190 students

Step-by-step explanation:

Just focus on the first half of the problem: 80 english, 60 French, and 50 German. Added together this gives you 190

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