Messed-Up SurveyLogic puzzles require you to think. You will have to be logical in your reasoning.
A survey agency recently reported their results of a recent survey in the local newspaper. The report clearly states that exactly 100 lawyers were interviewed. Of the one hundred, 75 own BMWs, 95 own Volvos, and 50 lawyers own both a BMW and a Volvo.
Within a short time, several lawyers argue that the results are incorrect. How can they tell?
AnswerThe numbers do not add up correctly. The report stated that only 100 people were interviewed, but they received 120 responses. You can see this by making a Venn Diagram of the data. (BMW only-25, BMW and Volvo-50, Volvo only-45)
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