Blood relations is one of the most important topics in logical reasoning. Click on the below Download button to view more information about Blood relations and real-time problems related to blood relations.
A tree as we know has roots firmly grounded and then it has its stem which branches out and gets leaves in it.
The same is the case with a family tree, wherein we can imagine our ancestors as the roots and then their children and grandchildren and so on act as branches and leaves.
Family Tree a pictorial or visual representation of our lineage. With the help of a family tree, it not only gives us a better understanding of our lineage but also helps us understand our relationship with different people who have common ancestors.
Basic Terms used in Blood Relations
Parents: Mother and father. Children: Son or Daughter Siblings: Brother or Sister( of the same parents) Spouse: Husband or wife. Aunt: Aunt means father’s sister, mother’s sister, father’s brother’s wife, or mother’s brother’s wife. Uncle: Uncle means father’s brother, Mother’s brother, Father's sister’s husband, mother’s sister’s husband. Niece: Brother’s and sister’s daughter. Nephew: Brother’s and sister’s son. Cousin: Children of aunt and uncle. Father-in-law: Father of the spouse. Mother-in-law: Mother of Spouse. Sister-in-law: Sister of the spouse, wife of brother Co-sister: Wife of spouse’s brother. Brother-in-law: Brother of the spouse, husband of the sister Co- brother: husband of spouse’s sister. Maternal: Relations or family members who are from the mother’s side. Paternal: Relations or family members who are from the father’s side.
Example 1: A family consists of five members B, C, E, F, and G. C is the son of G but G is not the mother of C, E and G are a married couple. B is the brother of G. F is the daughter of E. Who is the brother-in-law of E?
(A) F (B) G (C) B (D) None of these
With the given information we will draw the family tree.
From the family tree drawn, we get to know that the brother-in-law of E is B.
Example 2: A + B means B is the brother of A.
A × B means B is the husband of A.
A – B means A is the mother of B.
A % B means A is the father of B.
How is Q related to T from the expression "Q-P+R%T"?
(A) Grandmother (B) Mother (C) Aunt (D) Niece
Solution: From the given information we simplify the expression "Q-P+R%T"
Q is the mother of P
P is the brother of R
R is the father of T
From the family tree drawn, we can say that the Q is the grandmother of T.
Pointing to a person type problems
Example 3: Pointing to a man, a woman said, "His mother is the only daughter of my mother". How is the woman related to the man?
(A) Aunt (B) Sister (C) Cousin (D) Mother
Solution: We trace the given statement backward; Woman’s mother has only one daughter, which means the woman herself. So the man’s mother is the woman herself and hence the correct answer is option D.
Question 1: Introducing a man, a woman says, “His wife is the only daughter of my father”. How is the man related to the woman?
(A) Brother (B) Father-in-law (C) Maternal uncle (D) Husband
Question 2: If ‘A×B’ means that A is the sister of B, ‘A÷B’ means that A is the daughter of B, ‘A–B’ means that A is the son of B, then how is P related to S in relationship P – Q × R ÷ S?
(A) Brother (B) Son (C) Grandson (D) None of these
Question 3: A visits his brother P who stays with their father Q, mother S, and grandfather R, P has two children, B, and C. B's husband is X, and C's wife is Y. C's son T welcomes A on his visit. How is B related to Q?
(A) Grand-daughter (B) Grandson (C) Son (D) Daughter
Question 4: A's Son B is married to C whose sister D is married to E, who is the brother of B. How is C related to E?
(A) Sister-in-law (B) Sister (C) Daughter (D) Cousin
1. (D) 2. (C) 3. (A) 4. (A)
Blood relations is one of the most important topics in logical reasoning.
Two fundamental requisites for this topic are knowledge of terms associated with various types of relationships and the understanding of sketching a family tree and to be able to draw information out of it.
Perfection and confidence will only be observed when a student does the rigorous practice of these types of questions extensively!
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Frequently Asked Questions (FAQs) on Blood Relations
What are blood relations in reasoning?
Blood relation shows the different relations among the members of a family. Based on the information given, you are required to find the relation between particular members of the family.