Restaurant Reviews – Overlapping Sets

Welcome! You are encouraged to register with the site and login (for free). When you register, you support the site and your question history is saved.

Of 41 reviews of a particular restaurant, 20 cited good service, 7 cited the quality of the desserts, and 20 cited neither good service nor the quality of the desserts. How many of the reviews cited good service and the quality of the desserts?

Review: Restaurant Reviews - Overlapping Sets


Explanation

This is an overlapping sets question with two sets. We can optionally write the Venn diagram or we can simply recall the equation



Filling in what we know,





So, .

The correct answer is (E).


If you believe you have found an error in this question or explanation, please contact us and include the question title or URL in your message.