In a certain code language, A + B means ‘A is the brother of B’, A − B means ‘A is the father of B’, A × B means ‘A is the mother of B’, and A ÷ B means ‘A is the wife of B’. Based on the above, how is P related to T if ‘P × Q + R ÷ S − T’?

Question

Accepted Answer

Let's decode the expression step by step:

Given: P × Q + R ÷ S − T

Code meanings:
- A + B: A is the brother of B
- A − B: A is the father of B
- A × B: A is the mother of B
- A ÷ B: A is the wife of B

Let's add brackets for clarity (operations are performed from left to right):
1. P × Q: P is the mother of Q
2. Q + R: Q is the brother of R (so, Q and R are siblings)
3. R ÷ S: R is the wife of S
4. S − T: S is the father of T

Now, let's build the relationships:
- P is the mother of Q.
- Q is the brother of R, so P is also the mother of R (since Q and R are siblings).
- R is the wife of S.
- S is the father of T.

So, R (who is P's daughter) is the wife of S, and S is the father of T. That means R is the mother of T (since R and S are married, and S is the father of T).

Recall: P is the mother of R. So, P is the mother of R, and R is the mother of T.

Therefore, P is the maternal grandmother (mother's mother) of T.

Correct answer: Mother’s mother.

Answer

Answer

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