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jmc

counting and probability junior

Problem

An Annville Junior High School, of the students in the Math Club are in the Science Club, and of the students in the Science Club are in the Math Club. There are 15 students in the Science Club. How many students are in the Math Club?
(A)
(B)
(C)
(D)
(E)
Solution
If of the people in the science club of people are in the Math Club, people are in the both the Math Club and the Science Club. These people make up of the Math Club. Setting up a proportion: There are people in the Math Club.
Final answer
E