All questions of Blood Relations for RRB NTPC/ASM/CA/TA Exam

If P + Q means P is the brother of Q; P x Q means P is the wife of Q and P % Q means P is the daughter of Q then which of the following means D is the uncle of A?
  • a)
    A % B x C + D
  • b)
    A x B + C % D
  • c)
    A + C % B x D
  • d)
    None of these
Correct answer is option 'D'. Can you explain this answer?

Navya Reddy answered
The correct option is Option A.
A % B x C + D means D is an uncle of A.  
A % B means A is the daughter of B;
B x C means B is the wife of C;
C + D means C is the brother of D.
Thus if B and C are parents to A and C is the brother of D then logically D should be an uncle of A.

How is Meera's mother's mother's daughter-in-law's daughter related to Meera?
  • a)
    Niece
  • b)
    Sister
  • c)
    Sister-in-law
  • d)
    Aunt
Correct answer is option 'B'. Can you explain this answer?

Meera's mother's mother is Meera's grandmother. Her grandmother's daughter-in-law is Meera's mother. The mother's daughter is Meera's sister. Therefore, Meera's mother's mother's daughter-in-law's daughter is Meera's sister.

If P $ Q means P is the father of Q; P # Q means P is the mother of Q and P * Q means P is the sister of Q, then N # L $ P * Q shows which of the relation of Q to N?
  • a)
    Grand son
  • b)
    Grand daughter
  • c)
    Nephew
  • d)
    Data is inadequate
Correct answer is option 'D'. Can you explain this answer?

Kaavya Nair answered

Explanation:

Given Relations:
- P $ Q means P is the father of Q
- P # Q means P is the mother of Q
- P * Q means P is the sister of Q

Given Expression:
N # L $ P * Q

Analysis:
- N # L means N is the mother of L
- L $ P means L is the father of P
- P * Q means P is the sister of Q

Conclusion:
- From the given expression, we can determine that N is the maternal grandmother of Q.
- However, the specific relation of Q to N (such as grandson, granddaughter, nephew, etc.) cannot be definitively determined based on the given information.
- Therefore, the data provided is inadequate to determine the exact relation of Q to N in this case.

If D is the brother of B, how B is related to C? To answer this question which of the statements is/are necessary?
  1. The son of D is the grandson of C.
  2. B is the sister of D.
  • a)
    Only 1
  • b)
    Only 2
  • c)
    Either 1 or 2
  • d)
    1 and 2 both are required
Correct answer is option 'D'. Can you explain this answer?

Nisha Saha answered
Given: D is the brother of B.
From statement 1, we can detect that D is son of C (son of D is the grandson of C).
From statement 2, we can detect that B is 'Female' (sister of D).
Therefore, B is daughter of C.

Pointing to a lady a person said, "The son of her only brother is the brother of my wife." How is the lady related to the person?
  • a)
    Maternal aunt
  • b)
    Grandmother
  • c)
    Sister of father-in-law
  • d)
    None of these
Correct answer is option 'C'. Can you explain this answer?

Brother of person's wife → brother-in-law of the person. Hence, the son of lady's brother is brother-in-law of the person.
Therefore, the brother of the lady is the father-in-law of the person. Hence, the lady is the sister of the person's father-in-law.

Directions: Study the following information carefully and answer the questions given below
A family of three generations consists of eight members and only one married couple. L is the sister-in-law of M and vice versa. T is the son-in-law of F who is the maternal grandmother of S.  K is the brother-in-law of T and vice versa. L is unmarried. M is the daughter-in-law of L’s father. A is the only grandson of E.
Q. How S is related to L’s nephew?
  • a)
     Sister
  • b)
    Brother
  • c)
    Nephew
  • d)
    Niece
  • e)
    Can’t be determined
Correct answer is option 'A'. Can you explain this answer?

Shubhra Desai answered
Relationship Analysis:

- L is the sister-in-law of M and vice versa.
- T is the son-in-law of F who is the maternal grandmother of S.
- K is the brother-in-law of T and vice versa.
- L is unmarried.
- M is the daughter-in-law of L's father.
- A is the only grandson of E.

Analysis of the relationships:

- S is the maternal granddaughter of F.
- F is the mother of M.
- M is the sister of L.
- L's father is the father of M.
- This implies that L's father is also the father of S.
- Hence, S is the sister of L's nephew.

Therefore, S is related to L's nephew as a sister.

Pointing to a boy in the photograph Reena said, "He is the only son of the only child of my grandfather." How Reena is related to that boy?
  • a)
    Mother
  • b)
    Sister
  • c)
    Aunt
  • d)
    Cannot be determined
Correct answer is option 'B'. Can you explain this answer?

Ayush Rane answered
The boy in the photograph is the only son of Reena's grandfather's only son; i.e., the boy is the only son of Reena's father.
Hence, the boy is the brother of Reena or Reena is the sister of the boy.

If A $ B means A is the brother of B; A @ B means A is the wife of B; A # B means A is the daughter of B and A * B means A is the father of B, which of the following indicates that U is the father-in-law of P?
  • a)
    P @ Q $ T # U * W
  • b)
    P @ W $ Q * T # U
  • c)
    P @ Q $ W * T # U
  • d)
    P @ Q $ T # W * U
Correct answer is option 'A'. Can you explain this answer?

Sagar Sharma answered
Understanding the Symbols
- A $ B: A is the brother of B
- A @ B: A is the wife of B
- A # B: A is the daughter of B
- A * B: A is the father of B
Analyzing Option A
The expression in option A is:
P @ Q $ T # U * W
Let's break it down step by step:
1. P @ Q: P is the wife of Q.
2. Q $ T: Since Q is the husband of P and P is the wife, Q must be the brother of T.
3. T # U: T is the daughter of U.
4. U * W: U is the father of W.
From this breakdown, we can infer the relationships:
- P (Wife of Q)
- Q (Brother of T)
- T (Daughter of U)
- U (Father of W)
Thus, since P is married to Q, and Q is the brother of T, it follows that U is the father-in-law of P.
Conclusion
The relationships outlined in option A clearly establish that U is indeed the father-in-law of P. This makes option A the correct choice to indicate the relationship required in the question.

Pointing to a photograph. Bajpai said, "He is the son of the only daughter of the father of my brother." How Bajpai is related to the man in the photograph?
  • a)
    Nephew
  • b)
    Brother
  • c)
    Father
  • d)
    Maternal Uncle
Correct answer is option 'D'. Can you explain this answer?

Shraddha Bose answered
Explanation:
To determine Bajpai's relation to the man in the photograph, we need to analyze the information provided in the statement.

Given Information:
- Bajpai said, "He is the son of the only daughter of the father of my brother."

Analysis:
Let's break down the given information step by step to understand the relationships involved.

1. "The father of my brother": This refers to Bajpai's father. So, Bajpai's father is the father of his brother.

2. "The only daughter of the father of my brother": This refers to the daughter of Bajpai's father. It means Bajpai's father has only one daughter.

3. "He is the son of the only daughter of the father of my brother": This indicates that the man in the photograph is the son of the only daughter of Bajpai's father.

Conclusion:
Based on the analysis above, we can conclude that Bajpai is the maternal uncle of the man in the photograph.

Explanation:
- Bajpai's father is the father of his brother.
- The only daughter of Bajpai's father is the mother of the man in the photograph.
- Therefore, Bajpai is the maternal uncle of the man in the photograph.

Answer:
So, the correct answer is option 'D) Maternal Uncle'.

If A $ B means A is the brother of B; A @ B means A is the wife of B; A # B means A is the daughter of B and A * B means A is the father of B, which of the following indicates that U is the father-in-law of P?
  • a)
    P @ Q $ T # U * W
  • b)
    P @ W $ Q * T # U
  • c)
    P @ Q $ W * T # U
  • d)
    P @ Q $ T # W * U
Correct answer is option 'A'. Can you explain this answer?

Ayush Kapoor answered
Understanding the Relationships
To determine the correct expression indicating that U is the father-in-law of P, we need to analyze the given codes and their meanings. Here's a breakdown of the symbols:
- A $ B: A is the brother of B
- A @ B: A is the wife of B
- A # B: A is the daughter of B
- A * B: A is the father of B
Now, let's evaluate option A step-by-step.
Breaking Down Option A: P @ Q $ T # U * W
1. P @ Q:
- P is the wife of Q.
2. Q $ T:
- Q is the brother of T.
3. T # U:
- T is the daughter of U. This implies U is the parent of T.
4. U * W:
- U is the father of W.
Now, let's summarize the relationships:
- P is the wife of Q.
- Q is the brother of T.
- T is the daughter of U, meaning U is T's father.
- Since Q is T's brother, U is also the father of Q.
Conclusion
Since P is married to Q, and U is the father of Q, it follows that U is the father-in-law of P.
Thus, the correct answer is option A, confirming that U is indeed the father-in-law of P.
Key Point Summary
- P is married to Q.
- Q is a sibling to T, whose parent is U.
- Therefore, U is P’s father-in-law.

Mahesh introduces a girl to his friend and says - this is the daughter of one of my grandfather's sons. So what does this girl related to Mahesh?
    • a)
      mother
    • b)
      sister
    • c)
      wife
    • d)
      Cousin
    Correct answer is option 'B'. Can you explain this answer?

    Answer: The girl is Mahesh's sister.
    • "One of my grandfather's sons" refers to Mahesh's father (since Mahesh's father is the son of his grandfather).
    • "The daughter of one of my grandfather's sons" means the girl is the daughter of Mahesh's father, which makes her Mahesh's siste

    Direction: Study the following information carefully and answer the below questions
    In a family of seven members, there are two married couples. Nobody has any grandchildren. The gender of X and R are the same. V is the brother-in-law of R who is the son of K. K has two children. M is the sister-in-law of L who is the daughter-in-law of Z. X and Z area married couple. The gender of Z and K are the same.
    Q. How Z is related to M?
    • a)
      Brother
    • b)
      Mother
    • c)
      Father
    • d)
      Sister
    • e)
      Can’t be determined
    Correct answer is option 'B'. Can you explain this answer?

    Understanding Family Relationships
    To determine how Z is related to M, we need to analyze the family structure described in the information provided.

    Family Structure Breakdown
    - **Members:** There are seven members in total.
    - **Couples:** There are two married couples.
    - **Children:** K has two children, one of whom is R.
    - **Gender Relation:** The genders of X and R are the same, indicating both are either male or female.

    Identifying Each Member
    - **X and Z's Relationship:** X and Z are a married couple.
    - **R's Parentage:** R is the son of K. Since Z is married to X, and K and Z are of the same gender, K must also be female.
    - **V's Relationship:** V is the brother-in-law of R, meaning V is married to R's sister (who is X).

    Connecting M to Z
    - **M's Position:** M is identified as the sister-in-law of L, who is Z's daughter-in-law.
    - Since L is the daughter-in-law of Z, it implies that Z has a child who is married to L.

    Conclusion on Relationship
    - Given that Z is the mother of R and M is the sister-in-law of L (married to R), this confirms that Z is M's mother.
    Thus, Z is M's mother, leading to the correct answer being option 'B' (Mother).

    Direction: Study the following information carefully and answer the below questions.
    A family has eight members T, S, V, M, N, J, I, and L such that either both or none of the parents are alive. S is married to V who is the mother-in-law of N who is a mother of J. J is the nephew of L who is the brother-in-law of I. T is the grandfather of J. L is unmarried.
    Q. How J is related to I?
    • a)
      Daughter
    • b)
      Granddaughter
    • c)
      Son
    • d)
      Grandson
    • e)
      Can’t be determined
    Correct answer is option 'C'. Can you explain this answer?

    Dhanraj joshi answered
    Relationship between J and I:

    Given Information:
    - J is the nephew of L.
    - L is the brother-in-law of I.

    Explanation:
    - Since L is the brother-in-law of I, it means that L is either a brother of I's spouse or married to I's sibling.
    - If L is the brother of I's spouse, then J would be the nephew of I. However, this contradicts the given information that J is the nephew of L.
    - Therefore, L must be married to I's sibling. This makes J the nephew of L through the sibling's relationship.

    Conclusion:
    - J is the nephew of L who is the brother-in-law of I, so J is the nephew of I. Hence, J is related to I as a son.

    If X + Y means X is the daughter of Y; X - Y means X is the brother of Y; X % Y means X is the father of Y and X x Y means X is the sister of Y. Which of the following means I is the niece of J?
    • a)
      J - N % C x I
    • b)
      I x C - N % J
    • c)
      J + M x C % I
    • d)
      I x C + N - J
    Correct answer is option 'D'. Can you explain this answer?

    Kaavya Kumar answered
    Solution:

    To find out the relation between I and J, we need to look for a combination of symbols that means "I is the niece of J."

    Given:

    - X Y means X is the daughter of Y
    - X - Y means X is the brother of Y
    - X % Y means X is the father of Y
    - X x Y means X is the sister of Y

    We need to find the combination of symbols that means I is the niece of J.

    Explanation:

    - J - N % C x I: This means J is the brother of N, who is the father of C, who is the sister of I. This does not give us the relation we are looking for.
    - I x C - N % J: This means I is the sister of C, who is the daughter of N, who is the father of J. This does not give us the relation we are looking for.
    - J M x C % I: This means J is the daughter of M, who is the sister of C, who is the father of I. This does not give us the relation we are looking for.
    - I x C N - J: This means I is the sister of C, who is the daughter of N, who is the brother of J. This gives us the relation we are looking for. Therefore, option D is the correct answer.

    Final answer: Option D - I x C N - J means I is the niece of J.

    Pointing to a photograph Ram says, "She is the daughter of the only son of my grandfather." How is the woman in the photograph related to Ram?
    • a)
      Sister
    • b)
      Uncle
    • c)
      Cousin
    • d)
      Data is inadequate
    Correct answer is option 'A'. Can you explain this answer?

    Ishaan Roy answered
    Understanding Ram's Statement
    Ram's statement is crucial for determining the relationship between him and the woman in the photograph. Let's break it down step by step.
    Analyzing the Family Connections
    - "Only son of my grandfather": This refers to Ram's father. Since his grandfather has only one son, that son must be Ram's dad.
    - "Daughter of the only son": This means we are looking for the daughter of Ram's father.
    Conclusion of the Relationship
    - Since Ram is the son of his father, this implies that the woman in the photograph, being the daughter of Ram's father, is Ram's sister.
    Final Answer
    - Therefore, the woman in the photograph is related to Ram as his sister. The correct answer is option 'A'.
    This logical progression confirms that the relationship is straightforward and clearly defined through familial terms.

    Direction: Study the following information carefully and answer the below questions
    A family consists of seven members and three married couples. T is the paternal uncle of N who is married to S. V is the mother-in-law of S. L has only one kid. S and V are the same genders. K is the paternal grandmother of N. T is the son of M.
    Q. How T related to V?
    • a)
      Sister-in-law
    • b)
      Brother-in-law
    • c)
      Sister
    • d)
      Brother
    • e)
      None of these
    Correct answer is option 'B'. Can you explain this answer?

    Kalyan Mehta answered
    Understanding the Family Relationships
    To decipher how T is related to V, let's break down the information provided:

    Family Composition
    - The family consists of **seven members**.
    - There are **three married couples**.

    Key Relationships
    - **T** is the paternal uncle of **N**.
    - **N** is married to **S**.
    - **V** is the mother-in-law of **S**.
    - **L** has only one kid.
    - **S** and **V** are of the same gender, which implies both are female.
    - **K** is the paternal grandmother of **N**.
    - **T** is the son of **M**.

    Analyzing the Relationships
    1. Since **T** is the uncle of **N**, he must be the brother of **N's parent** (either the father or mother).
    2. **S**, being married to **N**, makes **V** the mother of **N** (and hence the mother-in-law of **S**), indicating **V** is married to **N's father**.
    3. Given that **T** is the brother of **N's parent**, he is the **brother-in-law** of **V**.

    Conclusion
    Since **T** is the brother of **V's husband**, he is best described as **V's brother-in-law**. Therefore, the correct answer is option **'B'**.

    Looking at a drawing of a Gentleman, Pinku said, "His mother is the wife of my father's son. Brothers and sisters, I have none." At whose drawing was Pinku looking?
    • a)
      Father
    • b)
      Son
    • c)
      Son-in-law
    • d)
      None of these
    Correct answer is option 'B'. Can you explain this answer?

    Since Pinku has no brother or sister, he is his father's only son. Now, the wife of my father's son is "my wife." So, Pinku's wife is the Gentleman's mother, meaning the man is Pinku's son.

    Chapter doubts & questions for Blood Relations - General Intelligence & Reasoning for RRB NTPC/ASM 2025 is part of RRB NTPC/ASM/CA/TA exam preparation. The chapters have been prepared according to the RRB NTPC/ASM/CA/TA exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for RRB NTPC/ASM/CA/TA 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

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