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SSC CGL Exam (Tier-I): Reasoning: Blood Relations: Concepts & Free Online Practice Set

Staff Selection Commission conducts Combined Graduate Level Exam for the recruitment to the different Group ‘B’ and Group ‘C’ posts. Jagranjosh.com has come up with SSC CGL Exam (Tier-I): Reasoning: Blood Relations: Concepts & Free Online Practice Set. Candidates should include these questions in their course of study. In blood relation and family relation question, a family tree or situation is defined in such a way that mutual relationships of some members are given. The relationship between the other members has to be deduced using general cultural and social rules of family. Here, we provide concepts along with Free Online Practice Set to make the easo of students in cracking blood relation questions in exam.

Concepts: Blood Relations

The entire questions in this section are completely based on Blood Relationship. The candidate should have a sound knowledge of blood relation in order to solve these questions.

Blood Relations can be divided into two sides as follows:

Paternal Side Relationships:

  1. Father’s Father – Grandfather
  2. Father’s Mother – Grandmother
  3. Father’s Sister – Aunt
  4. Father’s Brother – Uncle
  5. Children of Uncle – Cousin
  6. Children of Aunt – Cousin
  7. Wife of Uncle – Aunt
  8. Husband of Aunt – Uncle

Maternal Side Relationships:

  1. Mother’s Father- Maternal Grandfather
  2. Mother’s Mother – Maternal Grandmother
  3. Mother’s Sister – Aunt
  4. Mother’s Brother – Uncle
  5. Children of Maternal Uncle – Cousin
  6. Children of Maternal Aunt – Cousin

Knowledge of some important relations:

  1. Son’s wife is called Daughter-in-law
  2. Daughter’s Husband is called Son-in-law
  3. Brother’s wife is called Sister-in-law
  4. Sister’s Husband is called Brother-in-law
  5. Husband’s Brother is called Brother-in-law
  6. Wife’s Brother is called Brother-in-law
  7. Brother’s Son is called Nephew
  8. Brother’s Daughter is called Niece
  9. Sister’s Son is called Nephew
  10. Sister’s Daughter is called Niece

Take Online Test

The easiest way to solve the problems based on Blood Relationships would be to draw a tree diagram as follows.

       Relation Ships from one generation to next

Solved Examples

Example1: P’s father’s Sister’s father is Q. How is Q related to P?

(a)    Father

(b)   Uncle

(c)    Grandfather

(d)   Son

Solution: (a) Here P’s Father’s sister is P’s Aunt. Her father is P’s father’s father. Therefore, Q is grandfather of P.

Example2: Examine the following relationship among members of a family of six persons – A, B, C, D, E and F.

  1. The number of males equals that of females.
  2. A and E are sons of F.
  3. D is the mother of two, one boy and one girl.
  4. B is the son of A.
  5. There is one married couple in the family at present.

Which one of the following inferences can be drawn from the above?

(a) A, B and C are all females.

(b) A is the husband of D.

(c) D is the granddaughter of F

(d) E and F are children of D.

Solution: (b) it is clear that there are three males and three females in the family. Clearly A, E and B are males. So, C, D, and F are females. Also given that D is the mother of one boy and one girl. So, A and D form a couple having two children, namely B and C. Hence A is the husband of D.

Example 3:

U + V means U is the brother of V,

W – X means W is the father of S,

X  Y means X is the sister of Y,

Y  Z means Z is the mother of Y.

Which of the following means that N is the mother of O?

(a) L + M ÷ N × O

(b) L – M × O ÷ P

(c) N ÷ M × L ÷ O

(d) M + L ÷ O × N

Solution: (d) M + L ÷ O  N means M is the brother of L and L is the sister of O and N is the mother of O.


[Source:- Jagranjosh]

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