Problem:
The pie charts at the right indicate the percent of students who prefer golf, bowling, or tennis at East Junior High School and West Middle School. The total number of students at East is and at West, . In the two schools combined, the percent of students who prefer tennis
Answer Choices:
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Solution:
The first pie chart shows that of , or students at East prefer tennis. The second chart shows that of , or students at West prefer tennis. Thus of the total of students prefer tennis. This gives , or that prefer tennis.
East has of the students, and West has of the students. Using a weighted average yields , or .
Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions