Understanding Blood Relation Symbols

To solve this blood relation puzzle, we first need to understand the meaning of each symbol provided in the question:

• A + B means A is the mother of B.
• A - B means A is the brother of B.
• A % B means A is the father of B.
• A x B means A is the sister of B.

Analyzing Options to Establish P's Relationship to Q

Our goal is to find the specific relationship chain where P is the maternal uncle of Q. This means P must be the brother of Q's mother. Let's examine each given option:

Option 1 Analysis: $Q-N+M \times P$

Decoding the sequence:

• $Q-N$ implies Q is the brother of N.
• $N+M$ implies N is the mother of M.
• $M \times P$ implies M is the sister of P.

In this scenario, Q is the brother of N. N is the mother of M. M is the sister of P. This shows P is related to M, who is the child of Q's sibling (N). However, P is not established as the brother of Q's mother.

Option 2 Analysis: $Q-S \% P$

Decoding the sequence:

• $Q-S$ implies Q is the brother of S.
• $S \% P$ implies S is the father of P.

Here, Q is the brother of S, and S is the father of P. This makes Q the paternal uncle of P. This does not satisfy the condition of P being the maternal uncle of Q.

Option 3 Analysis: $P+S \times N-Q$

Decoding the sequence:

• $P+S$ implies P is the mother of S.
• $S \times N$ implies S is the sister of N.
• $N-Q$ implies N is the brother of Q.

Tracing the relationship: Q's brother is N. N's sister is S. S's mother is P. Since N and S are siblings of Q, P is the mother of Q. This doesn't make P the maternal uncle.

Option 4 Analysis: $P-M+N \times Q$

Let's carefully decode this expression to determine the relationship:

• $P-M$ implies P is the brother of M.
• $M+N$ implies M is the mother of N.
• $N \times Q$ implies N is the sister of Q.

Now, let's establish the connection to Q:

• From $N \times Q$, we know N is the sister of Q.
• From $M+N$, we know M is the mother of N. Since N and Q are siblings, M is also the mother of Q.
• From $P-M$, we know P is the brother of M.

Therefore, M is the mother of Q, and P is the brother of M. This means P is the brother of Q's mother, confirming that P is indeed the maternal uncle of Q.