1.

If 'A*Z' means 'A is th wife of Z.If 'AxxZ' means 'A is the husband or Z.If 'A+Z' means 'A is the sister of Z'.If 'A-Z' means 'A is the brother of Z'.If 'A gt Z' means 'A is the son of Z'.If 'A lt Z' means 'A is the daughter of Z'.Which of the following relations will not be ture if the expression 'A lt P,P xx T, T+F,F gt L, L xx M' is definitelytrue ?(a) A is the daughter of T(b) F is the son M(c) P is the son- in - law of L(d) A is the cousin of F

Answer»

<P>A is the DAUGHTER of T
F is the son M
P is the son- in - law of L
A is the cousin of F

Solution :(d) `A lt P IMPLIES ` A is the daughter of P .
`PxxTimplies ` P is THA husband or T.
`T+P implies ` T is the sister of F.
` F gt L implies ` F is the son of L .
`L XX M implies ` L is the husband of M.
A is the dughter of P and T .
F is the son of the L and M .
T is the daughter of L and M.
Therefore , P is son-in law of L.
A is the niece of F.
M is grandmother of A.


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