A+B means ‘ A is the father of B’
A-B means ‘A is the mother of B’
A×B means ‘A is the sister of B’
A ÷ B means ‘ A is the brother of B
Based on the above, if prime S - G ÷ T – M × P + R' then how is 'S' related to 'P' ?

Given:

 S - G ÷ T - M × P + R

S - G → S is the mother of G

G ÷ T → G is the brother of T
T - M → T is the mother of M.
M × P → M is the sister of P
P + R → P is the father of R.

From the above follwoing Diagram will be -  

From the above family diagram S is mother's mother of P.

Correct answer is (b) ​Mother's mother.