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Blood Relations 1

This type of reasoning question is based on the blood relations among the family members. And, you are required to find the relation between the particular members of the family. So, you must have a basic understanding of the different types of blood relations that exist in a family.

The following table will help you understand the different types of blood relations among the family members.

Father's or mother's son Brother
Father's or mother's daughter Sister
Father's elder or younger brother Uncle (Paternal)
Mother's elder or younger brother Maternal Uncle
Father's elder or younger sister Aunt
Mother's elder or younger sister Aunt (Maternal)
Son's wife Daughter-in-law
Daughter's husband Son-in-law
Sister's husband Brother-in-law
Brother's wife Sister-in-law
Husband's brother or wife's brother Brother-in-law
Husband's sister or wife's sister Sister-in-law
Husband's father or wife's father Father-in-law
Husband's mother or wife's mother Mother-in-law
Brother's son or sister's son Nephew
Brother's daughter or sister's daughter Niece
Uncle's or aunt's son Cousin
Uncle's or aunt's daughter Cousin
Father's or mother's father Grandfather
Father's or mother's mother Grandmother
Father of grandfather or grandmother Great-grandfather
Mother of grandfather or grandmother Great-grandmother

The relation on mother's side is called maternal, e.g., maternal uncle or aunt.
The relation on father's side is called paternal, e.g., paternal uncle or aunt.

1) Pointing to a photograph, a man said, "I have no brother, and that man's father is my father's son." Whose photograph was it?

  1. His son
  2. His own
  3. His father
  4. His nephew

Answer: A


The narrator has no brother, so he is the only son of his father, and his father's son is he himself. Hence, the narrator is the father of the man in the photograph, so the man in the photograph is his son.

2) Pointing to a photograph of a man, Pooja said, "He is the only son of the mother of my sister's brother." How is that person related to Pooja?

  1. Father
  2. Maternal Uncle
  3. Cousin
  4. None of these

Answer: D


The person in the photograph is the only son of the mother of Pooja's sister's brother. So, he is the brother of Pooja.

3) Pointing to a woman, a man said, "Her father is the only son of my father." How is the man related to the woman?

  1. Brother
  2. Grandfather
  3. Father
  4. Son

Answer: C


Only son of my father = the man himself. Therefore, the man is the father of this woman.

4) Looking at the portrait of a man, Mohan said, "His mother is the wife of my father's son and I have no brother and sister." at whose portrait was Mohan looking?

  1. His nephew
  2. His son
  3. His cousin
  4. None of these

Answer: B


Mohan has no brother and sister, so he is the only son of his father.

Now, wife of my father's son = Mohan's wife. And, Mohan's wife is the mother of the man, so the man is Mohan's son.

5) Pointing to a photograph, a lady tells Sohan, "I am the only daughter of this woman, and her son is your maternal uncle." How is the lady related to Sohan's father?

  1. Wife
  2. Sister-in-law
  3. Sister
  4. None of these

Answer: A


The lady's brother is Sohan's maternal uncle. So, the lady is Sohan's mother and wife of his father.

Blood Relations 2
Blood Relations 3
Blood Relations 4

Next TopicBlood Relations 2

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