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A told B,"The girl I met yesterday was the youngest daughter of the brother–in–law of my friend’s mother." How is the girl related to A's friend? 
 A.  Niece
 B.  Cousin
 C.  Friend
 D.  Daughter
Answer : B.

Daughter of brother–in–law –-> Niece;
Mother’s niece –-> Cousin.
So, the girl is the cousin of A's friend.

A and B are young ones of C. If C is the father of A but B is not the son of C. How are B and C related 
 A.  Niece and Uncle
 B.  Daughter and Father
 C.  Niece and Uncle
 D.  Daughter and Mother
Answer : B.


A man pointing to a photograph says. "The lady in the photograph is my nephew’s maternal grandmother." How is the lady in the photograph related to the man’s sister who has no other sister? 
 A.  Mother–in–law
 B.  Cousin
 C.  Sister–in–law
 D.  Mother
Answer : D.

The lady is the grandmother of man’s sister’s son
i.e., the mother of the mother of man’s sister’s son.
i.e., the mother of man’s sister.

F is the brother of A, C is the daughter of A, K is the sister of F and G is the brother of C then who is the uncle of G? 
 A.  C
 B.  A
 C.  K
 D.  None of the above.
Answer : B.

C & J are childern of A and F is the brother of A. So, F is uncle of C & J.

A woman walking with a boy meets another woman and on being asked about her relationship with the boy, she says, "My maternal uncle and his maternal uncle's maternal uncle are brothers." How is the boy related to the woman ? 
 A.  Husband
 B.  Brother-in-law
 C.  Son
 D.  Grandson
Answer : C.

Boy's maternal uncle will be brother of boy's mother. Maternal uncle of mother's brother and maternal uncle of lady are brother means lady is sister of mother's brother i.e., lady is the mother of the boy. So, the boy is woman's son.

Six members of a family ABCDE and F are travelling together. B is the son of C but C is not the mother of B. A and C are married couple. E is the brother of C. D is the daughter of A. F is the brother of B. How many male members are there in the family ? 
 A.  4
 B.  3
 C.  2
 D.  1
Answer : A.

E (Brother) C (Husband) A (Wife)
F and B (Sons) D (Daughter)
A is the wife of C and their daughter is D. The ramaining members are male members.

(I). A, B, C, D, E and F are six members of a family.
(II). One couple has parents and their children in the family.
(III). A is the son of C and E is the daughter of A.
(IV). D is the daughter of F who is the mother of E.

Which of the following pairs is the parents of the couple ? 
 A.  CF
 B.  AB
 C.  AF
 D.  BC
Answer : D.

E is the daughter of A and F is the mother of E.
So, A is the father of E and hence the husband of F.
Now, D is the daughter of F. So, D and E are the daughters of A and F.
Also, A is the son of C. Now, only B remains. Thus, B and C are the parents of A.
Hence, B and C are the parents of the couple.