Instructions

Read the information carefully and answer the following questions:
If A + B means A is the father of B
If A x B means A is the sister of B
If A $B means A is the wife of B If A % B means A is the mother of B If A $$\div$$ B means A is the son of B Question 24 # Which among the following expressions is false if Y is the son of X is definitely true? Solution (A) : W % L x T x Y $$\div$$ X = From the last part of the expression, it is clearly known that Y is son of X [ Y $$\div$$ X] (B) : W + L x T x Y $$\div$$ X = From the last part of the expression, it is clearly known that Y is son of X [ Y $$\div$$ X] (C) : X + L x T x Y $$\div$$ W = X is father of L, who is sister of T, who is sister of Y, and Y is son of W => W is the wife of X and hence Y is the son of X (D) W$ X + L + Y + T = W is the wife of X, who is father of L, who is father of Y, who is father of T.

=> Y is the grandson of X

(E) W % X + T x Y $$\div$$ L = W is mother of X, who is father of T and T is sister of Y, who is son of L

=> L is the wife of X and hence Y is the son of X.

Only, in (D) the expression is false.

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