All Exams Test series for 1 year @ ₹349 only
Question

Read the given information and answer the question that follows.

C is the sister of F. A is the father of B, husband of E and only son of D. D is the paternal grandfather of F and A does not have any sisters. How many children does A have?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
3

Reasoning Family Tree Structure

The question asks for the total number of children A has based on the given family relationships.

Identifying Key Relationships

  • A is the only son of D. This is a crucial piece of information linking D and A.
  • D is the paternal grandfather of F. This implies F's father is D's son.
  • Combining the above two points: Since A is D's only son, and D is F's paternal grandfather, A must be F's father.
  • A is the father of B. This directly tells us B is a child of A.
  • From point 3, we established A is F's father, making F a child of A.
  • C is the sister of F. Since F is A's child, C, being F's sibling, must also be A's child.

Counting A's Children

Based on the deductions:

  • B is a child of A.
  • F is a child of A.
  • C is a child of A.

Therefore, A has a total of 3 children.

Was this answer helpful?

Similar Questions

  1. Akshay's son-in-law is married to Anisha whose brother Vijay is married to Twinkle. How is Twinkle related to Akshay?
  2. There is a family of five persons A, B, C, D and E. D is the father of B, who is the wife of A. C is the sister of D, and E is the wife of D. How is E related to A?
  3. Pointing to a boy in a photograph, Anil said, “His father’s sister is the only daughter of my father’s father.” How is the boy’s father related to Anil?
  4. Nisha is the daughter of Ramkishan who is the husband of Urmila. Manisha is the sister of Urmila and the mother of Suman. Jitender is the father of Jatin who is the son of Suman. Jatin is related to Urmila as:
  5. Sohan told Raju, "Yesterday I met your mother's father's only granddaughter Sunita." Raju added that his mother was the only child to her parents. How is Raju related to Sunita?
  6. Selena is the sister of James and James is the father of Eden. Marco is James's sister's son. Eden's husband Robert has a friend, Ileana, who is Selena's aunt. How is Robert related to James?
  7. If you are the only child of your mother, Mary. Your maternal uncle, Christopher, is the husband of Merciya. Sophie is the only sister of Merciya. Jonathan is Sophie's sister's son. How is your mother related to Jonathan?
  8. Simplify the following.
     

    $105 \div 5 \times 3 + 39 - 46$

  9. The 'Seven Sisters of India' does NOT include which of the following states?
  10. Zaman and Saman are brothers who have a single parent, Sochio. Sochio is brother to Daman, whose mother has an only brother named Sher. Daman is the paternal aunt of Zaman. Sher has only one nephew and one niece. What is the name of Sher's nephew?

Important Questions from Family Tree Problems

  1. Six members of a family namely A, B, C, D, E and F are travelling together. B is the son of C but C is not the mother of B. A and C are married couple. E is the brother of C, D is the daughter of A. F is the brother of B. How many male members are there in the family?
  2. Sunil is the son of Kesav. Simran, who is Kesav's sister, has a son Maruti and daughter Sita. Prem is the maternal uncle of Maruti. How is Sunil related to Maruti?
  3. A and B are brothers. C and D are sisters. A's son is D's brother. How is B related to C?

  4. 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?

  5. Shanti’s daughter Chandini is married to Abhi. Anchal is married to Sandy, the grandson of Shanti. Abhi's grandson is Karan. Rashmi is the mother of Karan. Shaurya is Anchal's son. How is Shaurya related to Karan?

Need Expert Advice?
Upcoming Exams
RRB Technician
October 06, 2026
RRB JE
October 27, 2026
RRB ALP
November 03, 2026
Test Series
RRB NTPC img
Railways
RRB NTPC Under Graduate 2026 New Mock Test Series
1580 Tests 2 Tests Free
544 Attempts
4.3(498)
English, Hindi, Telugu +7 More

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App