Quiz- 1

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P - M → P is the brother of M

M + N → M is the mother of N

N x Q → N is the sister of Q

Therefore, P is the maternal uncle of Q.

If D is Male, the answer is Nephew.

If D is Female, the answer is Niece.

As the sex of D is not known, hence, the relation between
D and A cannot be determined.

Note: Niece - A daughter of one's brother or sister, or of one's
brother-in-law or sister-in-law. Nephew - A son of one's
brother or sister, or of one's brother-in-law or sister-in-law.

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'The only daughter of the father of X's mother' means mother of X.

Hence X is the son of the lady in the photograph.

M + K → M is the brother of K

K % T → K is the father of T

T x P → T is the sister of P

Therefore, K is the father of P and M is the uncle of P.

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M9N → M is the husband of N

N5K → N is the daughter of K

Hence, → M is the son-in-law of K

K3J → K is the mother of J

Hence, → K is a lady

Hence, → K is the mother-in-law of M.

Since E is the brother of B

Therefore, A is the father of E

but D is the wife of E.

Hence, D is the daughter-in-law of A.

F3M → F is the wife of M

M5K → M is the father of K

Therefore, F is the mother of K.