Common Core Algebra, January 2015, Question 26
26. The school newspaper surveyed the student body for an article about club membership. The table below shows the number of students in each grade level who belong to one or more clubs.
If there are 180 students in ninth grade, what percentage of the ninth grade students belong to more than one club?
Very straightforward question. The number of ninth graders in more than one club is 33 + 12 = 45. The total number of ninth graders is 180. Divide 45/180 = .25 or 25%.
You would have lost a point if you had done "1 or more" clubs, or picked a different year. You likely would have lost a point if you left the answer as a decimal when it asked for a percentage.
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