Question

3)
In a group of 50 students, 20 study subject A, 25 study subject B
and 20 study subject C. 10 study both A and B, 5 study both B and
C, 7 study both A and C. 2 study all three subjects.
(a) show this information on Venn diagram
(b) find the number of students who study
(i) A only
(ii) B or C?
(iii) A but not C (iv) none of A, B or C.
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Answer 1

Answer:

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