defence exam CISF Constable Driver 2025 Logical Reasoning Blood Relations Coded Blood Relation Problems
A + B means ‘A is the father of B’;
A – B means ‘A is the sister of B’;
A × B means ‘A is the brother of B’;
A ÷ B means ‘A is the mother of B’;
If, U + H × L – Q ÷ R – Y, then how is L related to Y?
1
Sister
2
Mother’s sister
3
Mother’s brother
4
Maternal grandmother