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1. In a class of 150 students 90 students have taken Finance(F), 75 students have taken Banking(B) and 55 students have taken Economics(E). 10 students have taken F and E but not B, 15 students have taken F and B but not E and 25 students have taken B and E but not F. Find the number of students who have taken all the three courses.
- A. 20
- B. 20
- C. 20
- D. 20
Answer: Option C
Explanation:
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