It is given that: (i) A is the mother of B, (ii) C is the son of A, (iii) D is the brother of E, (iv) E is the daughter of B. D's grandmother is: MCQ with Answer and Explanation

Explanation:
L # N → L is wife of N, so N is husband. N $ O → N is son of O. O @ P → O is mother of P, so P is child of O, and N and P are siblings. P # Q → P is wife of Q, so P is female. Thus N is brother of P, making N brother-in-law of Q (wife's brother).

Explanation:
A father of B. C, D brothers of B → A is father of C and D also. E is wife of D → E is daughter-in-law of A.

Explanation:
The only daughter of the woman's father is the woman herself. Therefore, she is the mother of the person.