Logical Reasoning: In a family of eight persons, there are two couples, each having two children.

The question was asked in the REASONING Ability section of SSC CGL 2019 Tier-1 exam which was held on 4th June 2019 in Shift-1.


Q. In a family of eight persons, there are two couples, each having two children. B and D are brothers and each has two children. E is the aunt of A, who is the cousin brother of C. C is the sister of H, who is the cousin brother of G. F is the wife of B. How is H related to F ?

(a) Nephew 

(b) son-in-law 

(c) Son 

(d) Brother-in-law

Answer: (a) Nephew

Explanation:


Analyse key points given in the question:

1) Total members in family = 8

2) Two couples are there, each have 2 children.

Lets number the family members:

  • Couple-1 is 1, 2
  • Couple-2 is 3, 4
  • Children of Couple-1 are 5, 6
  • Children of Couple-2 are 7, 8


3) B and D are brothers and each has two children.

From this statement, we can say:

  • 1 = B
  • 3 = D



4) F is the wife of B

From this statement, we can say:

  • 2 = F
  • 4 = wife of D

5) E is the aunt of A, who is the cousin brother of C. 

From this statement, we can say:

  • 4 = E
  • 5 = A (male) 
  • 7 = C 


6) C is the sister of H, who is the cousin brother of G

From this statement, we can say:

  • 7 = C (female)
  • 8 = H (brother)
  • 6 = G


Question says to find relation between H and F:

So from the below diagram of family tree, we can see that H is NEPHEW of F.




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