In a certain code language,$\text{A + B}$ means 'A is the mother of B',$\text{A - B}$ means 'A is the brother of B',$\text{A }\times \text{ B}$ means 'A is the wife of B',$\text{A }÷\text{ B}$ means 'A is the father of B'.Based on the above, how is R related to T if '$\text{Q }÷\text{ R + P - S }÷\text{ T}$ '?

Let's decode the family tree step-by-step from left to right:$\text{Q }÷\text{ R}⟹\text{Q is the father of R}$.$\text{R + P}⟹\text{R is the mother of P}$ ($\text{R}$ is female).$\text{P - S}⟹\text{P is the brother of S}$ ($\text{P}$ is male; $\text{P and S}$ are siblings sharing mother $\text{R}$).$\text{S }÷\text{ T}⟹\text{S is the father of T}$ ($\text{S}$ is male).Now, let's establish the connection between R and T:S is the father of T.R is the mother of S.Therefore, R is the mother of T's father, which means R is T's father's mother (paternal grandmother).