railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Logical Reasoning Blood Relations Coded Blood Relation Problems
If ‘S + T’ means S is the father of T,
‘S × T’ means S is the brother of T,
‘S – T’ means S is the mother of T,
then which of the following is definitely true about R – P + Q?
1
P is the son of R
2
Q is the father of P
3
Q is the son of P
4
R is the mother of Q