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1. In a class of 78 students 14 are taking French , 22 are taking German . Of the students taking French or German , 9 are taking both courses. How many students are not enrolled in either course?
- A. 6
- B. 6
- C. 6
- D. 6
Answer: Option C
Explanation:
আমরা জানি, N(T) = N(A) + N(B) - N(A n B) + None
None = N(T) - N (A) - N(B) + N( A n B)
= 78 - 41 - 22 + 9 = 24
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