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Question

An information was gathered about $40$ families, about the Newspaper they subscribe to. The following observations are made $: 9$ families subscribed to English newspaper, $20$ families subscribe to Marathi newspaper, $7$ families subscribe to newspapers of both the languages. Represent this information using venn diagram. Find the number of families not subscribing any newspaper.

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Solution

No newspaper $= 40 - [(20 + 9) - 7] = 40 - 22 = 18$

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