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 IBPS PO
Blood Relations is part of the Reasoning Ability section (20% of the IBPS PO syllabus). See the full IBPS PO Prelims breakdown.
Blood Relations Solved Examples for IBPS PO
Exam-pattern questions from the practice bank, with full solutions.
A, B, C, D, E and F are six members in a family. There are two married couples. D is the grandmother of A and mother of B. C is the wife of B and mother of F. E is the granddaughter of C. Who is the father of E?
- A.BCorrect
- B.D
- C.A
- D.Cannot be determined
Solution
D is the grandmother of A and mother of B. C is the wife of B and mother of F. E is the granddaughter of C. Since C is the wife of B, E is also the granddaughter of B. Since D is the mother of B and grandmother of A, and C is the mother of F, B and C are parents of A and/or F. Since E is the granddaughter of C and B, either A or F is the parent of E. Since D is the grandmother of A, A must be the parent of E. It's given that C is the mother of F, so C is also the grandmother of E. Since C is married to B, this means B is the grandfather of E. This means A is the parent of E. However, we cannot determine whether A is male or female. So B must be the father of A, and subsequently, the great-grandfather of E. However, the question asks for the father of E. Since A is the father of E, and D is the grandmother of A, B must be the father of A and the grandfather of E. This means the father of E must be B.
There are six people A, B, C, D, E and F living on different floors of a building. The lower most floor is numbered 1 and the top most floor is numbered 6. A lives on floor number 4. Two people live between A and B. C lives immediately above E. D lives on an even numbered floor. F lives below D. If A is the father of E, C is the mother of E, then how is F related to C?
- A.GrandsonCorrect
- B.Granddaughter
- C.Son
- D.Daughter
Solution
1. A lives on floor 4: _ _ A _ _ _ 2. Two people live between A and B: B _ A _ _ _ So, either B is on floor 1 or floor 6. 3. C lives immediately above E: B _ A C E _ or _ _ A C E B 4. D lives on an even numbered floor and F lives below D: This means B must be on floor 1 and D must be on floor 6. So the arrangement is B _ A C E D. Thus floors are: B-1, F-2, A-4, C-5, E-4, D-6. The final arrangement is: B, F, A, C, E, D. F must be on floor 2. Since A is the father of E and C is the mother of E, A and C are married. D is on floor 6, B is on floor 1 and F is on floor 2. Since the arrangement is B-1, F-2, A-3, C-4, E-5, D-6. Then, since A is the father of E and C is the mother of E, they are married. Since D is the father of A, and B is the child of D. and F is the child of B. And C is married to A. E is the child of A and C. So F is the grandson of C.
A is the father of B. B is the son of C, but C is not the mother of B. D is the brother of B. E is the sister of C. Who is the mother of D?
- A.ACorrect
- B.C
- C.E
- D.Data inadequate
Solution
A is the father of B, and B is the son of C, but C is not the mother of B. This means C is the father of B. D is the brother of B. Since A is the father of B and D, A is the father of both. Therefore, A is the father of D. The question asks 'Who is the mother of D?' Since A is the father, and C is also a male, A must be married to the mother of D. The question does not provide info on who the mother is. However, the question specifies that 'A is the father of B' so A is definitely the father of D, since D is the brother of B. The question asks *who is the mother of D*? It is incorrect to infer that the question is asking who the father is, so the correct answer must be 'Data inadequate'.
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 IBPS PO?
64 exam-pattern Blood Relations questions for IBPS PO Reasoning Ability, each with a step-by-step solution. Practice is free — no sign-up needed to start.