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jmc

counting and probability junior

Problem

The Pythagoras High School band has female and male members. The Pythagoras High School orchestra has female and male members. There are females who are members in both band and orchestra. Altogether, there are students who are in either band or orchestra or both. The number of males in the band who are NOT in the orchestra is
(A)
(B)
(C)
(D)
Solution
There are females in either band or orchestra, so there are males in either band or orchestra. Suppose males are in both band and orchestra. Thus, the number of males in band but not orchestra is . PIE
Final answer
A