Question
Match the following lists.
src="https://www.ixambee.com/questionimage/Railway-Protection-Force-(RPF)-Constable/1716956330-56.JPG" alt="" />Solution
The correct answer is A
If n(A) = 25, n(B) = 40 and n(A ∪ B) = 50, then n(A ∩ B) equals
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