state gov UP Police Head Operator (Radio Cadre) Mock Test Logical Reasoning Blood Relations Coded Blood Relation Problems
‘A + B’ means ‘A is the sister of B’, ‘A – B’ means ‘A is the father of B’.
If P – Q + R – S, then which of the following statement is not correct?1
P is the grandfather of S.
2
Q is the aunt of S.
3
R is the grandson of P.
4
R is the brother of Q.