# Verbal Reasoning - Blood Relation Test - Discussion

Discussion Forum : Blood Relation Test - Blood Relation 1 (Q.No. 39)
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?
Mother
Sister
Aunt
Cannot be determined
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.

Discussion:
13 comments Page 1 of 2.

Syed Muqeet said:   5 years ago
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.
(1)

Soumya said:   5 years ago
But he is the only son. Then how Reena is his sister?

I an not getting it cleared. Please explain it clearly
(1)

Khaleel said:   6 years ago
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.

Anuj said:   7 years ago
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.

Prateek said:   7 years ago
@Reena.

Can it not be Reena itself. Only son of Reena's father could be Reena.
(1)

Mohan said:   7 years ago

Esther said:   7 years ago
As per my knowledge, It comes sister. Kindly explain once more.

Akshay said:   8 years ago
I didn't get it. Please explain it.

Reena said:   8 years ago
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.

Ganesh said:   8 years ago
Who said reena is girl? we should not assume anything.

So cannot be determined.