ShmoopTube

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Here’s your shmoop du jour...

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A survey was taken of 1,000 randoms to determine people's favorite way of paying for Band-Aids.

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The following graph shows the results from the surveys that were returned. 

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How many people failed to return the survey?

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Possibly because they were being held at gunpoint by the Band-Aid Bandits?

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And here are the potential answers…

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1000 people in total were given a survey, and all of the responses are shown in the pie chart.

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That means that people who didn’t respond aren’t shown.

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Since we know the numbers of everyone who did respond…

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…if we add those numbers up we can find the total number of respondents.

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Then, we can use that to find the total number of people who didn’t return the survey.

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Let’s get started on the first step, finding the total number of people who successfully

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returned the survey. Thank you very much.

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We can do this by summing the numbers in each section of the pie chart.

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This comes out to 190 + 170 + 140 + 80 + 60, which is 640.

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If there were six hundred forty people who did respond, that means the rest of the thousand

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failed to respond. So, we can just subtract 640 from 1,000 to get 360.

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The answer is (B).

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As in… “Band-Aid Bandits.”

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