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Question 1
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(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
$\text{Which of the following means X is real grandmother of Y?}$
A.
$\ \text{X ∈ Z ψ K \$ L # Y}$
B.
$\ \text{Y ψ K \$ X # L}$
C.
$\ \text{Y # L \$ K ψ X ∈ Z}$
D.
$\ \text{K # X ψ Z # L \$ Y}$
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