For numbers 7-9, refer to the situation below:
A class of 45 students took examinations in Science and Math. If 35 passed Science, 15 passed Math and 6 failed both subjects.

6. How many students passed both subjects?
A. 6
B.15
C.35
D.44
7. How many students passed Science only?
A. 15
B.35
C.50
D.60
8. How many students passed Science only?
A. 6
B.9
C.12
D.15
9. Which is the correct Venn Diagram of
(B-A -C)?

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