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Out of 100 persons in a groups, 72 perso...

Out of 100 persons in a groups, 72 persons speak English and 43 persons speak French. Each one out of 100 persons speak at least one language. Then how many speak only English? How many speak only French? How many of them speak English and French both?

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People speaking only english 57, people speaking only french 27, people speaking both languages 15
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