SOLUTION: a group of 100 people touring europe includes 42 who speak greek, 56 who speak german, and 15 who speak neither language. How many people in the group speak both Greek and German?

Question 1059579: a group of 100 people touring europe includes 42 who speak greek, 56 who speak german, and 15 who speak neither language. How many people in the group speak both Greek and German?
Found 2 solutions by addingup, ikleyn:
Answer by addingup(3677)   (Show Source): You can put this solution on YOUR website!
15 speak neither language: 100-15 = 85
42 Greek and 56 German: 42+56 = 98
98-85 = 13 speak both languages
Answer by ikleyn(52835)   (Show Source): You can put this solution on YOUR website!
.
See the lesson
    - Counting elements in sub-sets of a given finite set
in this site.

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