SOLUTION: in a group of 30 high school,8 take french, 12 take spanish and 3 take both languages.how many students of the group take neither french nor spanish?

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Question 338846: in a group of 30 high school,8 take french, 12 take spanish and 3 take both languages.how many students of the group take neither french nor spanish?
Answer by scott8148(6628) About Me  (Show Source):
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5 take just French (8 - 3)
9 take just Spanish (12 - 3)

so 17 take French, or Spanish, or both (5 + 9 + 3)

that leaves 13 students who take neither French nor Spanish (30 - 13)