'A + B' means 'A is brother of B' 'A – B' means 'A is father of B' 'A × B' means 'A is husband of B' 'A ÷ B' means 'A is the mother of B' If P ÷ Q – S + K – T × R, then which of the following statements is not correct?
A. K is father in law of R.
B. Q is the father of T's father.
C. S is the brother of T's father.
D. P is the mother of K's mother.
Answer: Option D
Solution (By JKSSB Mock Tests)
P ÷ Q → P mother of Q. Q – S → Q father of S. S + K → S brother of K, so K is also son of Q. K – T → K father of T. T × R → T husband of R. K is father-in-law of R (true). S is brother of K, T's father (true). Q is father of K, so father of T's father (true). P is mother of Q, so P is grandmother of K, not mother of K's mother. Hence C is incorrect.
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