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Previous Year Question (PYQs)
4
(i) P ψ Q means P is mother of Q
(ii) P ∈ Q means P is sister of Q
(iii) P $ Q means P is father of Q
(iv) P # Q means P is brother of Q
$\text{Which of the following means K is nephew of M?}$
Solution
$\text{In option (D): }$
$\text{M # N ⇒ M is brother of N}$
$\text{N \$ L ⇒ N is father of L}$
$\text{L # K ⇒ L is brother of K ⇒ K is child of N}$
$\text{Thus K is nephew of M.}$
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