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SSC JE Electrical Engineering 24 Jan 2018 Evening Paper

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Question : 35 of 200

Marks: +1, -0

If A

\\

\text{ B means A is son of B, } A \# B \text{ means A is sister of B and If } A * B \text{ means A is father of B, then what does } X

{}

Y * Z # W mean?

X is father of W
X is brother of W
W is father of X
X is father’s father of W

Solution:

Condition (1) ⇒ A * B = A is the father of B.

So Y * Z = Y is Z’s father. Y is father.

Condition (2) ⇒ A

\\

\text{ } B = A \text{ is the son of } B \text{.\ So } X

\$$ Y = X is the son of Y. X and Z is brother.

Condition (3) ⇒ A # B = A is the sister of B.

HenceZ # W. = Z is the sister of W. So X is the brother of W

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