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Blood Relations

Reasoning Ability · Core Logical Tools

Useful for: SSC CGL, Railway RRB, IBPS Banking, KVS, NVS, OTET, UGC NET, EMRS

and 16 more exams

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Overview

Blood-relation questions are solved fastest by drawing a family tree with generations and genders marked.

Key points

Same generation: brother, sister, cousin; one up: father, mother, uncle, aunt; one down: son, daughter, nephew, niece.
Father’s or mother’s brother = uncle (paternal or maternal); father’s or mother’s sister = aunt.
Brother’s or sister’s son = nephew; daughter = niece.
Spouse’s parents are parents-in-law; sibling’s spouse is brother- or sister-in-law.
Gender is often unknown — do not assume it unless stated.

Explanation

"Only son of my grandfather" is the speaker’s father (if the speaker’s parent is that son).
Mark generations by levels so that relations like grandfather appear two levels up.
Check whether the relation is asked from A to B or B to A.
If gender is not given, the answer may be "cannot be determined".

Step by step

Draw the tree from each statement.
Locate the two people.
Name the relation in the asked direction.

Examples

Pointing to a man, Rita says, "He is the son of my mother’s only brother." The man is Rita’s cousin.
A is B’s sister; C is B’s mother; D is C’s father → A is D’s granddaughter.
X is the brother of Y; Y is the daughter of Z → X is Z’s son.

Traps and advanced points

Trap: Assuming a gender that is not stated.
Trap: Reversing the direction of the relation.
Trap: Skipping a generation in the tree.

Quick revision

Draw generations.
Mark gender only when given.
Read "A is __ of B" carefully.

Practice MCQs

Aarav Khan is the father of Diya Khan. Diya Khan is the sister of Kabir Khan. How is Aarav Khan related to Kabir Khan?
1. Father
2. Maternal uncle
3. Mother
4. Paternal aunt
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Answer: (a) Father. Draw a tiny family tree.
Arjun Rao is the father of Kavya Rao. Kavya Rao is the sister of Ishaan Rao. How is Arjun Rao related to Ishaan Rao?
1. Mother
2. Father
3. Paternal aunt
4. Maternal uncle
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Answer: (b) Father. Draw a tiny family tree.
Karan Sharma is the brother of Anu Sharma. Anu Sharma is the mother of Meera Sharma. How is Karan Sharma related to Meera Sharma?
1. Mother
2. Maternal uncle
3. Father
4. Paternal aunt
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Answer: (b) Maternal uncle. Draw a tiny family tree.
Ritu Verma is the sister of Varun Verma. Varun Verma is the father of Rohan Verma. How is Ritu Verma related to Rohan Verma?
1. Father
2. Paternal aunt
3. Mother
4. Maternal uncle
Read chapter notes · Similar questions
Show answer
Answer: (b) Paternal aunt. Draw a tiny family tree.
Arjun Das is the brother of Kavya Das. Kavya Das is the mother of Anu Das. How is Arjun Das related to Anu Das?
1. Maternal uncle
2. Paternal aunt
3. Father
4. Mother
Read chapter notes · Similar questions
Show answer
Answer: (a) Maternal uncle. Draw a tiny family tree.
Nisha Sharma is the mother of Arjun Sharma. Arjun Sharma is the brother of Kavya Sharma. How is Nisha Sharma related to Kavya Sharma?
1. Mother
2. Father
3. Paternal aunt
4. Maternal uncle
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Show answer
Answer: (a) Mother. Draw a tiny family tree.
Pooja Verma is the mother of Neel Verma. Neel Verma is the brother of Ritu Verma. How is Pooja Verma related to Ritu Verma?
1. Mother
2. Paternal aunt
3. Father
4. Maternal uncle
Read chapter notes · Similar questions
Show answer
Answer: (a) Mother. Draw a tiny family tree.
Ritu Rao is the sister of Varun Rao. Varun Rao is the father of Rohan Rao. How is Ritu Rao related to Rohan Rao?
1. Mother
2. Paternal aunt
3. Father
4. Maternal uncle
Read chapter notes · Similar questions
Show answer
Answer: (b) Paternal aunt. Draw a tiny family tree.
Diya Rao is the sister of Kabir Rao. Kabir Rao is the father of Neel Rao. How is Diya Rao related to Neel Rao?
1. Father
2. Mother
3. Maternal uncle
4. Paternal aunt
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Answer: (d) Paternal aunt. Draw a tiny family tree.
Rohan Rao is the brother of Diya Rao. Diya Rao is the mother of Anu Rao. How is Rohan Rao related to Anu Rao?
1. Maternal uncle
2. Father
3. Paternal aunt
4. Mother
Read chapter notes · Similar questions
Show answer
Answer: (a) Maternal uncle. Draw a tiny family tree.
Ritu Sharma is the sister of Dev Sharma. Dev Sharma is the father of Rohan Sharma. How is Ritu Sharma related to Rohan Sharma?
1. Paternal aunt
2. Father
3. Mother
4. Maternal uncle
Read chapter notes · Similar questions
Show answer
Answer: (a) Paternal aunt. Draw a tiny family tree.
Arjun Rao is the brother of Kavya Rao. Kavya Rao is the mother of Nisha Rao. How is Arjun Rao related to Nisha Rao?
1. Paternal aunt
2. Mother
3. Maternal uncle
4. Father
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Show answer
Answer: (c) Maternal uncle. Draw a tiny family tree.
Meera Khan is the mother of Rohan Khan. Rohan Khan is the brother of Tara Khan. How is Meera Khan related to Tara Khan?
1. Paternal aunt
2. Maternal uncle
3. Mother
4. Father
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Show answer
Answer: (c) Mother. Draw a tiny family tree.
Rohan Verma is the father of Tara Verma. Tara Verma is the sister of Vikram Verma. How is Rohan Verma related to Vikram Verma?
1. Mother
2. Paternal aunt
3. Father
4. Maternal uncle
Read chapter notes · Similar questions
Show answer
Answer: (c) Father. Draw a tiny family tree.
Aarav Khan is the brother of Pooja Khan. Pooja Khan is the mother of Anu Khan. How is Aarav Khan related to Anu Khan?
1. Father
2. Maternal uncle
3. Paternal aunt
4. Mother
Read chapter notes · Similar questions
Show answer
Answer: (b) Maternal uncle. Draw a tiny family tree.