Is the Wikipedia statement true or false?

Question

A recent wikipedia article reports that 10% of all americans eat at McDonalds everyday. Current data indicates approximately 310 million americans and 12,800 Mcdonalds restaurants in the U.s. Is the Wikipedia report true or false. Create a mathematical argument to justify your position.

Answer 1

There is not sufficient information given to answer the question.  If you knew how many Americans eat at the 12,800 McDonalds each day, you could compare that total to 10% of 310 million.  But just knowing the total number of Americans and McDonalds is not sufficient to prove or disprove that 10% of Americans eat at McDonald's each day.