Verbal Reasoning - Blood Relation Test - Discussion

39. 

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

Answer: Option B

Explanation:

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.


Manoj said: (Dec 10, 2013)  
How can we know reena is male or female?

Priyanka said: (Nov 10, 2014)  
It is written that he is only son so how come sister come when he is only son.

Dipesh Chauhan said: (Mar 6, 2015)  
How you came to know that the only child of her grandfather is male?

Ganesh said: (Feb 29, 2016)  
Who said reena is girl? we should not assume anything.

So cannot be determined.

Reena said: (Aug 30, 2016)  
Reena said, "He is the only son of the only child of my grandfather. ".

The only child of my grandfather -> Reena's grandpa has only one child, so Reena and the guy in photo share common parents.

The only son of -> there are only one male child and other children will be female.

So Reena is his sister.

Akshay said: (Oct 4, 2016)  
I didn't get it. Please explain it.

Esther said: (Feb 25, 2017)  
As per my knowledge, It comes sister. Kindly explain once more.

Mohan said: (Mar 1, 2017)  
Great answer @Reena.

Prateek said: (Aug 2, 2017)  
@Reena.

Can it not be Reena itself. Only son of Reena's father could be Reena.

Anuj said: (Aug 23, 2017)  
As per my understandings Reena is the mother of the boy.

Explanation: Only child of Reena's GrandFather is Reena herself. Now the boy is the only son of grandfather's child so he is only son of Reena.

Khaleel said: (Jan 19, 2018)  
Get the word clearly, it says that ONLY SON of the only child ----means her father's only son but her father could have many daughters one among them is REENA.

Hence REENA is the sister of that boy.

Soumya said: (Oct 27, 2018)  
But he is the only son. Then how Reena is his sister?

I an not getting it cleared. Please explain it clearly

Syed Muqeet said: (Jan 20, 2019)  
Pointing to a boy.

Reena said: He (Boy) is the only son :-which means his (Boys) parents have only one son and may have 1 or more daughters.

He is the only son of the only child:- which means he is the only son of his father/mother, and his father/mother is the only child (means his father has no brother and sister /or his mother has no brother and sister).

He is the only son of the only child of my grandfather:- which means he is the only one son and may have 1 or more daughters, and his father/mother is the only child (means his father has no brother and sister /or his mother has no brother and sister) of Reena's grandfather.

That implies Reena has a brother who has mother/father as a single child of their father.

Hope you understand.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.