railway DFCCIL Executive 2025 Mock Test Logical Reasoning Blood Relations Coded Blood Relation Problems
In a certain code language,
A + B means 'A is the son of B',
A - B means 'A is the wife of B',
A × B means 'A is the brother of B',
A ÷ B means 'A is the mother of B'.
Based on the above, if 'P - Q × R + S ÷ T', which of the following is true?
1
Q is the son of S.
2
S is the mother of P.
3
P is the daughter of T.
4
T is the son of S.