Blood Relation | Consanguinity: Solved Examples with Diagrams

Blood Relation, Consanguinity

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Blood Relation | Consanguinity

“Diagram” is the only way to solve all blood relation questions.

  • Types of Blood Relation Questions:
    • Puzzles type
    • Indicating type
    • Coded Relationship.

BLOOD RELATION RULES

Relation on MOTHER’s side is known as “MATERNAL” while on the FATHER’s side is known as “PATERNAL”.

RELATIONSHIP NAME OF RELATION
Mother’s or Father’s sonBrother
Mother’s or Father’s daughterSister
Mother’s or Father’s brotherUncle
Mother’s or Father’s sisterAunt
Mother’s or Father’s fatherGrandfather
Mother’s or Father’s motherGrandmother
Sister’s or Brother’s sonNephew
Sister’s or Brother’s son Niece
Uncle’s or Aunt’s childCousin
Grandchild’s childGreat grandchild

IN-LAWS

RELATIONSHIP NAME OF RELATION
Son’s wifeDaughter-in-law
Daughter’s husbandSon-in-law
Husband’s or wife’s sister’sSister-in-law
Husband’s or wife’s brotherBrother-in-law
Sister’s husbandBrother-in-law
Brother’s wifeSister-in-law

Representations for diagram:

  • For male: Square
  • For female: Circle

GENERATION GAP:

  • For upper than you:
    • Example: Parents, grandparents, uncle, aunt etc.
  • Equal to you:
    • Example: Siblings, cousin etc.
  • Lower than you:
    • Example: Son, daughter, nephew, niece etc.

Practice Questions with Solutions

  1. A is B’s sister. C is B’s mother. D is C’s father. E is D’s mother. Then, how is A related to D?
    1. Daughter
    2. Grand daughter
    3. Daughter-in-law
    4. None of the above
Blood Relation

Ans. Option (2), Grand-daughter.
Explanation: D is father of C and C is mother of B means D is grand parent of B and B is sister of A so A is grand-daughter of D.

  1. In a family, there are six members A, B, C, D, E and F;
    A and B are a married couple, A being the male member. D is the only son of C, who is the brother of A. E is the sister of D. B is the daughter-in-law of F, whose husband has died. How is E related to C? 
    1. Sister
    2. Daughter
    3. Cousin
    4. Mother

Ans. Option (2), Daughter.
Explanation: C is the father of D and E is the sister of D means E and D are siblings so, E is daughter of C.

  1. There are six persons A. B, C, D, E and F. C is the sister of F. B is the brother of E’s husband. D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group. Who is the mother?
    1. A
    2. B
    3. C
    4. E

Ans. Option (4), E is the mother.
Explanation: According to question we know that there are two father, three brothers and a mother. D is the father of A and A is the father F (two father are A and D). E is wife of A (in a group there are only two female members i.e. E and C and A is father of F so E is wife of A.). Three brothers in group are ( we know A and B are two brothers and third is F) A, B, F.

  1. A woman introduces a man as the son of the brother of her mother. How is the man, related to the woman? 
    1. Nephew
    2. Son
    3. Cousin
    4. Uncle to grandson

Ans. Option(3), Cousin.
Explanation: Man is the son of her mother’s brother i.e. uncle’s son and uncle’s son is cousin.

  1. K is sister of S. S is married to M. M is the father of R. Q is son of P. S is mother-in-law of P. M has only one son and no daughter. K is married to T. N is daughter of K. How is P related to M?
    1. Uncle
    2. Son
    3. Daughter-in-law
    4. Grandson

Ans: Option (3), Daughter-in-law.
Explanation:  S and M is married couple and R is the son of S and M and P is the wife of R because S is the mother-in-law of P and S is the mother of R so P is the daughter-in-law M.

  1. K is sister of S. S is married to M. M is the father of R. Q is son of P. S is mother-in-law of P. M has only one son and no daughter. K is married to T. N is daughter of K. How is K related to P?
    1. Mother
    2. Aunt
    3. Sister
    4. Daughter

Ans. Option (2), Aunt.
Explanation: K is the sister of S and S is mother-in-law of P so K is the aunt of P.

  1. S is daughter of U. V has only two children-S and Y. P is the brother of B. Y is married D. V has only two daughters. J is the mother of U. P is married to S. J is married to L. V is the son of T. Who among the following is the father of U?
    1. J
    2. T
    3. V
    4. L

Ans. Option (4), L . 
Explanation: L is the father of U because J and L is married couple and J is the mother of U.

  1. S is daughter of U. V has only two children-S and Y. P is the brother of B. Y is married D. V has only two daughters. J is the mother of U. P is married to S. J is married to L. V is the son of T. Who among the following is sister-in-law of B?
    1. Y
    2. S
    3. U
    4. J

Ans. Option (2), S.
Explanation: S is the sister-in-law of B because P is the brother of B and P is married to S.

  1. S is daughter of U. V has only two children-S and Y. P is the brother of B. Y is married D. V has only two daughters. J is the mother of U. P is married to S. J is married to L. V is the son of T. How is V related to P?
    1. Father-in-law
    2. Mother-in-law
    3. Father
    4. Mother

Ans. Option (1), Father-in-law.
Explanation: V is the father of S and S is married to P so V is the father-in-law of V.

  1. K is the brother of J. J is the mother of Y. Y is the sister of T. T is married to Q. S is the father of J. S has only one daughter. S is married to R. K is the brother of D. U is the father-in-law of D. How is D related to Y?
    1. Mother
    2. Father
    3. Uncle
    4. Aunt

Ans. Option (3), Uncle.
Explanation:  D is brother of K and K is brother of J so D is also brother of J. J is mother of Y so D is uncle of Y.

  1. K is the brother of J. J is the mother of Y. Y is the sister of T. T is married to Q. S is the father of J. S has only one daughter. S is married to R. K is the brother of D. U is the father-in-law of D. If U is the father of C then how D is related to C?
    1. Cousin
    2. Husband
    3. Brother
    4. Can’t be determined

Ans. Option (4), Can’t be determined.
Explanation: Because C is doesn’t define (C is not defined whether it was a female or a male).

  1. If A is the brother of B; B is the sister of C; and C is the father of D, how D is related to A?
    1. Brother
    2. Sister
    3. Nephew
    4. Can’t be determined

Ans. Option (4), Can’t be determined.
Explanation: As the D is not defined weather it is female or male so we can’t determine relation between D and A.

  1. Pointing to a photograph of a boy Suresh said, “He is the son of the only son of my mother.” How is Suresh related to that boy?
    1. Brother
    2. Uncle
    3. Cousin
    4. Father

Ans. Option(4), Father
Explanation: Suresh is only son of Suresh’s mother means Suresh is only son of her mother and the boy is son of Suresh mean Suresh is father of the boy.

  1. Introducing a boy, a girl said, “He is the son of the daughter of the father of my uncle.” How is the boy related to the girl?
    1. Brother
    2. Nephew
    3. Uncle
    4. Son-in-law

Ans. Option (1), Brother.
Explanation: Father of girl’s uncle is grandfather, daughter of grandfather is Father’s sister and son of father’s sister is brother.

  1. Pointing to a photograph Lata says, “He is the son of the only son of my grandfather.” How is the man in the photograph related to Lata?
    1. Brother
    2. Uncle
    3. Cousin
    4. Can’t be determined

Ans. Option (1), Brother.
Explanation: Son of Lata’s grandfather is father of Lata, son of Lata’s father is Lata’s brother.

  1. Pointing to a photograph. Bajpai said, “He is the son of the only daughter of the father of my brother.” How Bajpai is related to the man in the photograph?
    1. Nephew
    2. Brother
    3. Father
    4. Maternal Uncle

Ans. Option (4), Maternal Uncle.
Explanation: Father of Bajpai’s brother is father, daughter of father is sister of Bajpai mean the man in the photo is son of Bajpai’s sister. So, Bajpai is the maternal uncle of the man.

  1. Deepak said to Nitin, “That boy playing with the football is the younger of the two brothers of the daughter of my father’s wife.” How is the boy playing football related to Deepak?
    1. Son
    2. Brother
    3. Cousin
    4. Brother-in-law.

Ans. Option (2), Brother.
Explanation: Father’s wife is mother and mother’s daughter is sister and sister’s younger two brother is brother.

  1. Veena who is the sister-in-law of Ashok, is the daughter-in-law of Kalyani. Dheeraj is the father of Sudeep who is the only brother of Ashok. How Kalyani is related to Ashok?
    1. Mother-in-law
    2. Aunt
    3. Wife
    4. None of these

Ans. Option (4), None of these.
Explanation: Kalyani is the mother of Sudeep and Ashok is the brother of Sudeep So, Kalyani is mother of Ashok.

  1. Pointing to a woman, Abhijit said, “Her granddaughter is the only daughter of my brother.” How is the woman related to Abhijit?
    1. Sister
    2. Grandmother
    3. Mother-in-law
    4. Mother

Ans. Option (4), Mother.
Explanation: Daughter of Abhijit’s brother is niece of Abhijit. Women granddaughter is the Abhijit’s niece. Women is the mother of Abhijit because women is grandmother of Abhijit’s daughter mean mother of Abhijit’s brother so women is also mother of Abhijit.

  1. Amit said – “This girl is the wife of the grandson of my mother”. How is Amit related to the girl?
    1. Brother
    2. Grandfather
    3. Husband
    4. Father-in-law

Ans. Option (4), Father-in-law.
Explanation: Grandson of Amit’s mother is son of Amit and Amit is the father-in-law of Amit’s son’s wife.

  1. Pointing towards a man, a woman said, “His mother is the only daughter of my mother.” How is the woman related to the man?
    1. Mother
    2. Grandmother
    3. Sister
    4. Daughter

Ans. Option (1), Mother.
Explanation: Man’s mother is the only daughter of women mother so women is the mother of man.

  1. Introducing Sonia, Aamir says, “She is the wife of only nephew of only brother of my mother.” How Sonia is related to Aamir?
    1. Wife
    2. Sister
    3. Sister-in-law
    4. Mother

Ans. Option (1), Wife.
Explanation: Brother of Aamir’s mother is maternal uncle, only nephew of maternal uncle is Aamir himself so Sonia is the wife of Aamir.

  1. Pointing to Varman, Madhav said, “I am the only son of one of the sons of his father.” How is Varman related to Madhav?
    1. Nephew
    2. Uncle
    3. Father or uncle
    4. Father

Ans. Option (3), Father or uncle.
Explanation: Madhav is the son of one of the sons of Varman’s father mean Varman is either father or uncle of Madhav.

  1. Introducing a woman, Shashank said, “She is the mother of the only daughter of my son.” How that woman is related to Shashank?
    1. Daughter
    2. Sister-in-law
    3. Wife
    4. Daughter-in-law

Ans. Option (4), Daughter-in-law.
Explanation: Woman is the mother of only daughter of Shashank’s son mean woman is wife of Shashank’s son. So, woman is the daughter-in-law of Shashank.

  1. Pointing to a photograph Anjali said, “He is the son of the only son of my grandfather.” How is the man in the photograph related to Anjali?
    1. Brother
    2. Uncle
    3. Son
    4. Father

Ans (1), Brother.
Explanation: Only son of Anjali’s grandfather mean father of Anjali, son of the Anjali’s father is brother of Anjali.

  1. Pointing to a person, Deepak said, “His only brother is the father of my daughter’s father”. How is the person related to Deepak?
    1. Father
    2. Grandfather
    3. Uncle
    4. Brother-in-law

Ans. Option (3), uncle.
Explanation: Father of Deepak daughter’s father mean Deepak’s father, person only brother of Deepak’s father so, person is uncle of Deepak.

  1. P is the mother of K; K is the sister of D; D is the father of J. How is P related to J?
    1. Mother
    2. Grandmother
    3. Aunt
    4. Daughter

Ans. Option (2), Grandmother
Explanation: K is sister of D and mother of K is P so P is also mother of D. D is father of J so P is the grandmother of J.

  1. Introducing a man, a woman said, “He is the only son of the mother of my mother.” How is the woman related to the man?
    1. Mother
    2. Sister
    3. Niece
    4. Maternal aunt

Ans. Option (3), Niece.
Explanation: The man is son of the mother of women mother so, the man is the maternal uncle of the woman. So, woman is the niece of the man.

  1. Pointing to Gopi, Nalni says, “I am the daughter of the only son of his grandfather.” How Nalni is related to Gopi?
    1. Niece
    2. Daughter
    3. Sister
    4. Can’t be determined

Ans. Option (3), Sister.
Explanation: Nalni is the daughter of the only son of Gopi’s grandfather so, Nalni is the sister of Gopi.

  1. A’s son B is married with C whose sister D is married to E the brother of B. How D is related to A?
    1. Sister
    2. Daughter-in-law
    3. Sister-in-law
    4. Cousin

Ans. Option (2), Daughter-in-law.
Explanation: E is brother of B so A is the father of B, D is the wife of E so D is daughter-in-law of A.

  1. Pointing to a girl Sandeep said, “She is the daughter of the only sister of my father.” How is Sandeep related to the girl?
    1. Uncle
    2. Cousin
    3. Father
    4. Grandfather

Ans. Option (3), Cousin.
Explanation: The girl is the daughter of Sandeep’s father sister so, Sandeep is the cousin of the girl.

  1. Pointing to a boy in the photograph Reena said, “He is the only son of the only child of my grandfather.” How Reena is related to that boy?
    1. Mother
    2. Sister
    3. Aunt
    4. Can’t be determined

Ans. Option (2), Sister.
Explanation: Boy is only son of the child of Reena grandfather mean son of Reena’s father so Reena is the sister of the boy.

  1. Pointing towards a girl, Abhishek says, “This girl is the daughter of only a child of my father.” What is the relation of Abhishek’s wife to that girl?
    1. Daughter
    2. Mother
    3. Aunt
    4. Sister

Ans. Option (2), Mother.
Explanation: Only a child of Abhisek’s father means Abhishek himself, so the girl is daughter of Abhishek. So, Abhishek’s wife is the mother of the girl.

  1. A is the son of C; C and Q are sisters; Z is the mother of Q and P is the son of Z. How P is related to A?
    1. Cousin
    2. Maternal uncle
    3. Maternal grandfather
    4. None of these

Ans. Option (2), Maternal uncle.
Explanation: P is the brother of A’s mother so P is maternal uncle of A.

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  1. Pointing to a photograph of a boy Mr. Ram said, “He is the son of the only son of my mother.” How is Mr. Ram related to that boy?
    1. Brother
    2. Uncle
    3. Cousin
    4. Father

Ans. Option (4), Father.
Explanation: Only son of Ram’s mother means Ram himself, the boy is the son of Ram so Mr. Ram is the father of the boy.

  1. If A + B means A is the mother of B; A – B means A is the brother B; A % B means A is the father of B and A * B means A is the sister of B, which of the following shows that P is the maternal uncle of Q?
    1. Q-N+M*P
    2. P+S*N-Q
    3. P-M+N*Q
    4. Q-S%P

Ans. Option (3), P – M + N * Q.
Explanation: In statement (c) N is the daughter of M and P is the brother of M so P is maternal uncle of Q.

  1. If A + B means A is the brother of B; A – B means A is the sister of B and A * B means A is the father of B. Which of the following means that C is the son of M?
    1. M – N * C + F
    2. F – C + N * M
    3. N + M – F * C
    4. M * N – C + F

Ans. Option (4), M * N – C + F.
Explanation: In statement (d), M is the father of and N is the sister of C so C is also son of M.

  1. If A + B means A is the brother of B; A * B means A is the son of B; and A % B means B is the daughter of A then which of the following means M is the maternal uncle of N?
    1. M + O * N
    2. M % O * N + P
    3. M + O % N
    4. None of these

Ans. Option (4), None of these.

  1. If A + B means A is the father of B; A – B means A is the brother B; A % B means A is the wife of B and A * B means A is the mother of B, which of the following shows that M is the maternal grandmother of T?
    1. M * N % S + T
    2. M * N – S % T
    3. M * S – N % T
    4. M * N * S % T

Ans. Option (1), M * N % S + T.
Explanation: T is the child of S and wife of S is N and mother of N is M so M is the maternal grandmother of T.

  1. If A + B means A is the sister of B; A * B means A is the wife of B, A % B means A is the father of B and A – B means A is the brother of B. Which of the following means T is the daughter of P?
    1. P * Q % R + S – T
    2. P * Q % R – T + S
    3. P – Q % R + T – S
    4. P + Q % R + S + T

Ans. Option (2), P * Q % R – T + S.
Explanation: R is the brother of T and mother of R is P so T is the daughter of P.

  1. If P $ Q means P is the brother of Q; P # Q means P is the mother of Q; P * Q means P is the daughter of Q in A # B $ C * D, who is the father?
    1. D
    2. B
    3. C
    4. None of these

Ans. Option (1), D.
Explanation: A is the mother of B, B is the brother of C and C is the daughter of D so, D is the father.

  1. If A + B means A is the brother of B; A % B means A is the father of B and A * B means A is the sister of B. Which of the following means M is the uncle of P?
    1. M % N * P
    2. N * P % M
    3. M + S % R % P
    4. M + K % T * P

Ans. Option (4), M + K % T * P.
Explanation:  In the statement, (d) P is the sister of T, K is the father of T so K is also the father of P and M is the brother of K so M is uncle of P.

  1. If A + B means B is the brother of A; A x B means B is the husband of A; A – B means A is the mother of B and A % B means A is the father of B, which of the following relations shows that Q is the grandmother of T?
    1. Q – P + R % T
    2. P * Q % R – T
    3. P * Q % R + T
    4. P + Q % R – T

Ans. Option (1), Q – P + R % T.
Explanation: Q is mother of P, R is the brother of P so Q is also the mother of R. R is father of T so Q is grandmother of T.

  1. If A3P means A is the mother of P; A4P means A is the brother of P; A9P means A is the husband of P; A5P means A is the daughter of P, which of the following means that K is the mother-in-law of M?
    1. M9N3K4J
    2. M9N5K3J
    3. K5J9M3N
    4. None of these

 Ans. Option (2), M9N5K3J.
Explanation: M is the husband of N, N is the daughter of K so K is the mother-in-law of M.

  1. If P $ Q means P is the father of Q; P # Q means P is the mother of Q and P * Q means P is the sister of Q, then N # L $ P * Q shows which of the relation of Q to N?
    1. Grand son
    2. Grand daughter
    3. Nephew
    4. Can’t be determine

Ans. Option (4), Can’t be determine.
Explanation: Because Q is doesn’t define (Q is not defined whether it was a female or a male).

  1. If A * B means A is the father of B, A % B means A is the daughter of B, A + B means A is sister of B, A – B means A is the husband of B, how F is related to H in F % R * H – L.
    1. Sister
    2. Mother
    3. Daughter
    4. None of these

Ans Option (1), Sister
Explanation: F is daughter of R and H is son of R so F is sister of R

  1. If A * B means A is the father of B, A % B means A is the daughter of B, A + B means A is sister of B, A – B means A is the husband of B, how M is related to G in G * T + Q % M.
    1. Wife
    2. Sister
    3. Mother
    4. Can’t be determined

Ans. Option (1), Wife.
Explanation: G is the father of T and Q is the sister of T so G is also the father of Q. M is the mother Q so M is the wife of G.

  1. If A * B means A is the father of B, A % B means A is the daughter of B, A + B means A is sister of B, A – B means A is the husband of B. How N is related to K in H * K % N?
    1. Daughter
    2. Mother
    3. Sister
    4. None of these

Ans. Option (2), Mother
Explanation: H is the father of k and K is the daughter of N so N is mother of K.

  1. If A * B means A is the father of B, A % B means A is the daughter of B, A + B means A is sister of B, A – B means A is the husband of B. How F is related to T in F – R + H % T?
    1. Son
    2. Son-in-law
    3. Father
    4. Uncle

Ans. Option (2), Son-in-law
Explanation: F is the husband of R, R is the sister of H and father of H is T so T is also father of R. So, F is son-in-law of T.

  1. If A $ B mean A is the mother of B, A # B mean A is the father of B, A @ B mean A is the husband of B, A % B mean A is the daughter of B. How P is related to T in P @ Q $ M # T?
    1. Father
    2. Grandfather
    3. Son
    4. None of these

Ans. Option (2), Grandfather
Explanation: P is husband of Q, Q is mother of M, M is the father of T so Q is the grandmother of T. So, P is grandfather of T.

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