Correct option is A
Given:
A + B → A is the mother of B.
A – B → A is the sister of B.
A × B → A is the father of B.
A ÷ B → A is the brother of B.
Concept:
Decode each symbolic relation one by one and determine the relationship between the first and the last person.
Solution:
Option (a):
R + P × Q ÷ S
R + P → R is the
mother of P.
P × Q → P is the
father of Q.
Q ÷ S → Q is the
brother of S.
Thus, P is the father of both Q and S.
Since R is the mother of P,
R is the grandmother of S.
Hence, option
(a) is correct.
Final Answer:
R + P × Q ÷ S
