A has three children. B is the brother of C, and C is the sister of D. E, who is the wife of A, is the mother of D. There is only one daughter of the husband of E. What is the relation between D and B?
AB is the brother of D ✓ Correct
BB is not related to D
CD is the sister of B
DNone of the above
Correct answer: (A) B is the brother of D
Explanation
B is the brother of D.
A and E are the parents of three children B, C and D.
C is a sister and there is only one daughter.
So C is the single daughter, leaving B and D as the two sons.
As two sons of the same parents, B is the brother of D.
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