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Q:
A) 34 % | B) 44 % |
C) 54 % | D) 64 % |
Answer: B) 44 %
Explanation:
Explanation:
n (A) = 34, n (B) = 42, n (A ∩ B) = 20.
So, n (A U B) = n (A) + n(B) - n(A ∩B) = 34 + 42 - 20 = 56.
Percentage failed in either or both the subjects = 56.
Hence, percentage passed = (100 - 66)% = 44%.