Q. In a society 21 people like hot chocolate, 26 people like tea and 29 people like coffee. 14 people like hot chocolate and tea, 12 like coffee and hot chocolate, 15 people like tea and coffee. 8 people drink all three. How many people drink only coffee?

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Solution

The correct option is A 10
From the given information 8 people drink all three beverages.

Using additional data the people who drink any two beverages can be found out

Now find the number of people who drink only one beverage.

Total number of people who drink only coffee is 10

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