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| Speaking Volumes (Posted on 2004-11-10) |
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In a group of students, 50 speak English, 50 speak French and 50 speak
Spanish. Some students speak more than one language. Prove it is
possible to divide the students into 5 groups (not necessarily equal),
so that in each group 10 speak English, 10 speak French and 10 speak
Spanish.
Reference
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 | Comment 13 of 19 | 
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