Question 150

In a certain code,
'$$A + B$$' means 'A is the father of B',
'$$A \times B$$'means A is the mother of B',
'$$A \$ B$$'' means 'B is the brother of A',
'$$A \% B$$' means 'B is the sister of A',
and 'A # B'means B is the son of A'.
Which of the following statement is correct?

Solution

Statement 1:
K is sister of J, J is the son of their parent H and H is brother of G. 
This is not necessarily true because we do not know the gender of G, so G could be the parental uncle or parental aunt. 

Statement 2: 
V is the son of T, T is the brother of S, and S is the sister of R. This makes T, S and R siblings. 
Therefore, the statement that V is the nephew of R is correct. 

Statement 3: 
P is the son of N, N is the brother of M, L is the mother of M.
This would make P and L generations apart. 
Therefore, this statement is incorrect. 

Statement 4:
E is the mother of F, E is the sister of D, C is the father of D. 
C would be father of E as well, and thus grandparent of F, but we cannot say that F is the grandson of C because we don not know the gender of F. 

Therefore, Option B is the correct answer. 


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