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. 15
• C. 10
• D. 25
• D. None of these

Answer: Option C

Explanation: