Skiing Club Members…and the Whole Class

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Ten percent of the members of a class are in the skiing club. Among the members of the class who are not in the skiing club, 40 have previously skied in their lives and 41 have never skied. How many members are there in the class?

Review: Skiing Club Members...and the Whole Class


Explanation

In this question we have a class and a club. We are told that 10% of the class is in the club, but then we get information about the rest of the class. Since among non-club members, 40 have skied and 41 have not, and since that's an either-or, we have a count of the 90% - it's 81. If 90% of the class is 81 people, then and the number of people in the class is





The correct answer is (A).


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