What Blood Relations Questions Test
- Statement-based relation chains
- Coded relations (A + B means A is mother of B)
- Family-tree puzzles with multiple generations
- Pointing-to-photograph problems
Question bank coverage by sub-pattern
How Blood Relations Appears in SSC CGL
Blood Relations is part of the General Intelligence & Reasoning section (25% of the SSC CGL syllabus). See the full SSC CGL Tier-I breakdown.
Blood Relations Solved Examples for SSC CGL
12 exam-pattern blood relations questions from the practice bank, each with a full solution.
Six people P, Q, R, S, T and U are sitting in a straight line facing north. P is sitting second to the right of T. Q is sitting to the immediate left of U. R is sitting to the immediate right of S. T is sitting at one of the ends of the line. U is sitting between T and P. If S is the father of P, then who is the mother of P?
- A.Q
- B.R
- C.U
- D.Cannot be determinedCorrect
Solution
The arrangement is T U P Q R S or S R Q P U T. We know S is the father of P, but the information does not provide who the mother of P is. Therefore, the answer is 'Cannot be determined'.
There are six persons A, B, C, D, E and F in a family. C is the sister of F. B is the brother of E's husband. D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the family. Who is the mother?
- A.A
- B.B
- C.C
- D.ECorrect
Solution
D is the father of A and grandfather of F, so A is the parent of F. C is the sister of F, so A is also the parent of C. Since there are two fathers, D must be one of them. Since there are only two fathers, A must be female (as D is the grandfather). B is the brother of E's husband, which means E is married. Since D is the father of A, and A is the parent of C and F, then D is the father-in-law of E. Since there is only one mother, it must be E.
Pointing to a photograph, a man said, 'He is the son of the only daughter of my father.' How is the man related to the person in the photograph?
- A.FatherCorrect
- B.Brother
- C.Uncle
- D.Cousin
Solution
The man's father's only daughter is the man's sister. The son of the man's sister is his nephew. Therefore, the man is the father of the person in the photograph.
Pointing to a man, Rocky (a man) said, "He is the father of the daughter of my daughter-in- law." How Rocky is related to that man?
- A.Uncle
- B.Son
- C.FatherCorrect
- D.Brother-in-law
Solution
Rocky's daughter-in-law is his son's wife. The daughter of his daughter-in-law is his granddaughter. The father of his granddaughter is his son. Therefore, Rocky is the father of that man.
A + B means 'A is the father of B'; A – B means 'A is the sister of B'; A × B means 'A is the brother of B'; A ÷ B means 'A is the mother of B'. If U + H × L – Q ÷ R – Y then how is L related to Y
- A.Mother's brother
- B.Mother's sisterCorrect
- C.Sister
- D.Maternal grandmother
Solution
U is the father of H, H is the brother of L, L is the sister of Q, Q is the mother of R, R is the sister of Y. Therefore, L is the sister of Y's mother.
P is father of Q and grandfather of R. R is brother of S.T is the mother of S and is married to V. T is sister of Q. How is V related to P?
- A.Son
- B.Nephew
- C.Brother-in-law
- D.Son-in-lawCorrect
Solution
P is father of Q. Q is sister of T. T is married to V. Therefore, V is son-in-law of P.
Saloni is the daughter of the only son of Kartik. Nirupama is the mother of Deepak. Yamini's only son, Ankit, is married to Nirupama. Kartik is the paternal grandfather of Deepak. How is Kartik related to Ankit?
- A.Brother
- B.Paternal uncle
- C.Son
- D.FatherCorrect
Solution
Kartik is the father of Ankit.
Azad points towards a picture and says it's the picture of his mother's father's only granddaughter's only brother. How is Azad related to the person in the picture?
- A.Sister
- B.Son
- C.Father
- D.Azad himselfCorrect
Solution
Azad's mother's father is Azad's maternal grandfather. His only granddaughter is Azad's mother. Azad's mother's only brother is Azad himself.
A # B means 'A is the sister of B' A @ B means 'A is the daughter of B' A & B means 'A is the husband of B' A % B means 'A is the father of B' If A % B & C # D @ E, then how is B related to E?
- A.Brother
- B.Son-in-lawCorrect
- C.Father
- D.Son
Solution
A is father of B, B is husband of C, C is sister of D, D is daughter of E. Therefore, B is son-in-law of E.
If A × B means that A is the brother of B, A – B means that A is the sister of B, A + B means that A is the father of B then which of the following expression shows that P is the paternal aunt of R?
- A.P – Q × R
- B.P – Q + RCorrect
- C.P × Q + R
- D.P + Q – R
Solution
P - Q + R means P is the sister of Q, and Q is the father of R. Therefore, P is the paternal aunt of R.
In a certain code language, 'A + B' means 'A is the mother of B', 'A – B' means 'A is the father of B', 'A $ B' means 'A is the son of B', 'A % B' means 'A is the sister of B', 'A / B' means 'A is the wife of B' and 'A = B' means 'A is the brother of B'. Which of the following means A is the daughter of K?
- A.i
- B.iiiCorrect
- C.ii
- D.iv
Solution
K + A / P – D % J translates to K is the mother of A, A is the wife of P, P is the father of D, D is the sister of J. Thus, A is the daughter of K.
Based on the logical principles of Family Tree Problems, determine the valid outcome or relationship.
- A.Neither Conclusion I nor Conclusion II follows
- B.Conclusion II follows logically from the given premise
- C.Conclusion I follows logically from the given premiseCorrect
- D.Both Conclusion I and Conclusion II follow logically
Solution
In Family Tree Problems, analyzing the relationship between the terms verifies that Conclusion I is a direct and necessary deduction.
Blood Relations — Frequently Asked Questions
What is the standard method for blood relation questions?
Draw a family tree as you read — squares for males, circles for females, vertical lines for generations. Solving in your head fails exactly when the question is worth solving.
What is the most common trap in these questions?
Assuming gender. "Child of", "sibling of" and names do not reveal gender — if the final relationship depends on an unknown gender, the answer is "cannot be determined".
How many Blood Relations practice questions does Parikshala have for SSC CGL?
81 exam-pattern Blood Relations questions for SSC CGL Reasoning, each with a step-by-step solution. Practice is free — no sign-up needed to start.