Q.1
iii
iv
i.
EXERCISES TWO
In a class of 70 students, 60 but 10 students pass Mathematics, Biology o
Chemistry, 30 pass Mathematics, 30 pass Biology and 25 pass Chemistry
If 11 pass Mathematics and Biology, 10 pass Biology and Chemistry an
7 pass Mathematics and Chemistry. How many students;
Pass all three subjects
Pass Mathematics or Chemistry but not Biology
Pass Biology and Chemistry but not Mathematics
Pass at least one subject.
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