Question

Q. If $P+Q$ means P is the brother of Q; P$\times$Q means P is the sister of Q, and P $\$$ Q means P is the father of Q, then which of the following would mean that J is the son of K?

• A.
  K $\times$ N $\$$ J $+$ F
• B.
  F $\times$ J $+$ N $\$$ K
• C.
  $N+K\times F\$J$
• D.
  $K\$N\times J+F$

Answer 1

The correct option is D

$K\$N\times J+F$

• $K\times N\$J+F\to$ K is the sister of N, N is the father of J, J is the brother of F. Here, J is the son of N and so, K will be his aunt.
• $F\times J+N\$K\to$ F is the sister of J, J is the brother of N, N is the father of K. Here K is J’s father’s/mother’s brother or Uncle.
• $N+K\times F\$J\to$ N is the brother of K, K is the sister of F, F is the father of J. Again, K is J’s father’s sister.
• $K\$N\times J+F\to$ K is the father of N, N is the sister of J, J is the brother of F. These statements together mean that K is the father of J.