Verbal Reasoning - Blood Relation Test - Discussion

The answer is only 1 because C is the parent of B.

Both 2 statements are required. Because according to the question D is the brother of B . It means we don't know B is male/female.

So according to the first statement ' The son of D is the grandson of C .So here we can know C is the father of D . And second statement say ' B is the sister of D . So about two statements we can know,

C is the father of D.
B is the sister of D.
B is the daughter and D is the son of C.
So finally B is female.
Hope you guys understand.

No, I think it should be only 2. We need to find the relation between B and C. From 2, we come to know that B is a girl. It is sufficient to say B will be a daughter of C, irrespective of the gender of C.

The given answer is correct.

Because we find the relation between B and C.

So, the relation between B and C is brother and sister.

Therefore both statement is required.

I think only statement 1 is required as the relation of B is asked wrt C. So B is the father of C can b explained with statement 1 itself. If the question was how C is related to B then 2nd statement was required. Hence the answer is A.

The given answer is correct.

Because we find the relation between B and C.

So the relation between B and C is brother and sister.

Therefore both statement is required.

@All.

Both statements are required for us. Without a second statement. We can't know the gender of B. Without knowing the gender. How can we related to C?

The second statement cannot support the question.

So, sentence one is alone sufficient.
only 1 is correct.

@All.

The First Statement help us discover 'C' as the Grandfather and The second statement help us discover not only the gender of 'C" but also the relation between C and D.

And if The gender was not specified then in that case the option would have 'Can't be Determined'-Which would be our answer.

C may be brother or sister of B. Right? Please anyone explain me in detail.