Blood Relation

31 October 2022


Blood Relationship is considered to be one of the most important topics of logical reasoning section for any Entrance Aptitude test or competitive exam. The students must have precise knowledge of blood relations in order to solve variety of questions.

Recall the Blood relation concepts and practice the following Questions.

Here we have provided collection of variety of Questions on Blood relationship concept. Try to solve maximum to increase your performance in exams.


Practice Questions For Blood Relation

Q1) Pointing to a girl in the photograph, Ajay said, "Her mother's brother is the only son of my mother's father." How is the girl's mother related to Ajay?

A) Mother

B) Sister

C) Aunt

D) Grandmother

Solution :


Q2) If 'X $ Y' means 'X is father of Y'; 'X # Y' means 'X is mother of Y'; 'X × Y' means 'X is sister of Y', then how is D related to N in N # A $ B × D ?

A) Nephew

B) Grandson

C) Granddaughter

D) Cannot be Determined

Solution :


Q3) Pointing to a photograph, Vipul said, "She is the daughter of my grandfather's only son." How is Vipul related to the girl in the photograph?

A) Father

B) Brother

C) Cousin

D) Uncle

Solution :


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Q4) 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?

A) Grandfather

B) Grandmother

C) Daughter

D) Granddaughter

Solution :


Q5) 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? 

A) Brother 

B) Uncle 

C) Cousin 

D)  Father 

Solution : 

The boy in the photograph is the only son of the son of Suresh's mother i.e., the son of Suresh. Hence, Suresh is the father of boy. 

Q6) 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 x B means A is the sister of B, which of the following shows that P is the maternal uncle of Q? 

A) Q - N + M x P 

B) P + S x N - Q 

C) P - M + N x Q 

D) Q - S % P 

Solution :

P - M → P is the brother of M 
M + N → M is the mother of N 
N x Q → N is the sister of Q 
Therefore, P is the maternal uncle of Q. 

Q7) 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? 

A) Brother 

B) Sister 

C) Nephew 

D) Cannot be determined 

Solution :

If D is Male, the answer is Nephew. 
If D is Female, the answer is Niece. 
As the sex of D is not known, hence, the relation between D and A cannot be determined.
Note: Niece - A daughter of one's brother or sister, or of one's brother-in-law or sister-in-law. 
Nephew - A son of one's brother or sister, or of one's brother-in-law or sister-in-law.  

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Q8)  If A + B means A is the brother of B; A - B means A is the sister of B and A x B means A is the father of B. Which of the following means that C is the son of M? 

A) M - N x C + F 

B) F - C + N x M 

C)  N + M - F x C 

D) M x N - C + F 

Solution :

M x N → M is the father of N 
N - C → N is the sister of C 
and C + F → C is the brother of F. 
Hence, M is the father of C or C is the son of M. 

Q9) 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? 

A)  Brother 

B)  Nephew 

C) Uncle 

D) Son-in-law 

Solution :

The father of the boy's uncle → the grandfather of the boy and daughter of the grandfather → sister of father. 

Q10) 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? 

A) Brother 

B)  Uncle 

C) Cousin 

D) Data is inadequate 

Solution :

The man in the photograph is the son of the only son of Lata's grandfather i.e., the man is the son of Lata's father. Hence, the man is the brother of Lata. 

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