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You and a friend read in the newspaper that 7% of all Americans eatat McDonald\'

ID: 2916765 • Letter: Y

Question

You and a friend read in the newspaper that 7% of all Americans eatat McDonald's each day. Your friend says, "That's impossible!" Youknow that there are approximately 250,000,000 Americans andapproximately 9000 McDonald's restaurants in the U.S. You think theclaim is reasonable. Show your mathematical work and write aparagraph that explains your reasoning.
You and a friend read in the newspaper that 7% of all Americans eatat McDonald's each day. Your friend says, "That's impossible!" Youknow that there are approximately 250,000,000 Americans andapproximately 9000 McDonald's restaurants in the U.S. You think theclaim is reasonable. Show your mathematical work and write aparagraph that explains your reasoning.

Explanation / Answer

If there are 250,000,000 Americans, then 7% of this would be(250,000,000 * 0.07) = 17,500,000 Americans. If these 7% (17,500,000) Americans went to one McDonald'severy day, then each McDonald's would have an average of(17,500,000 / 9000) = 1944 customers each day. If a McDonald's is open 18 hours each day, then eachMcDonald's would serve (1944 / 18) = 108 customers everyhour. This is highly unlikely, but not impossible.