Question
In a class of 78 students 41 are taking French, 22 are taking German. Of the students taking French or German, 9 are taking both courses. How many students are not enrolled in either course? A. 6
B. 15
C. 24
D. 33
E. 54
Read 2 Solution.
n(f)=41
n(g)=22
n(g and f) = 9
n(gorf) = n(f)+n(g)-n(g and f)
n(g or f) = 41+22-9 = 54
universal = 78 =54+ not enrooled in either course
there fore no of std. who are not enrolled in either of the courses = 24
SANJEET 11 year ago
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ASHRAFI IQBAL 11 year ago
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