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MAA AMC
AMC 8
1991 AMC 8
23
23
Part of
1991 AMC 8
Problems
(1)
AJHSME 1991 Problem 23
Source:
6/24/2011
The Pythagoras High School band has
100
100
100
female and
80
80
80
male members. The Pythagoras High School orchestra has
80
80
80
female and
100
100
100
male members. There are
60
60
60
females who are members in both band and orchestra. Altogether, there are
230
230
230
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)
10
(B)
20
(C)
30
(D)
50
(E)
70
\text{(A)}\ 10 \qquad \text{(B)}\ 20 \qquad \text{(C)}\ 30 \qquad \text{(D)}\ 50 \qquad \text{(E)}\ 70
(A)
10
(B)
20
(C)
30
(D)
50
(E)
70