Question : Directions: In a certain code language,
X + Y means X is the sister of Y,
X # Y means X is the husband of Y,
X & Y means X is the daughter of Y,
X % Y means X is the mother of Y,
X @ Y means X is the brother of Y.
Based on the above, which of the following expressions denotes that D is the wife of F?

Option 1: D % P # K + R % F

Option 2: F @ R + K + P % D

Option 3: P & D % R + K % F

Option 4: D % P + K @ R & F

Correct Answer: D % P + K @ R & F

Solution : Let's check the options –
First option: D % P # K + R % F
According to the given information, the family tree will be –

Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
From the above diagram, D is the mother-in-law of F's mother's sister.
Second option: F @ R + K + P % D
According to the given information, the family tree will be –

Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
From the above diagram, D is the niece of F.
Third option: P & D % R + K % F
According to the given information, the family tree will be –

Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
From the above diagram, D is the grandmother of F.
Fourth option: D % P + K @ R & F
According to the given information, the family tree will be –

Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
From the above diagram, P, K, and R are the siblings. Thus, D is the wife of F.

Hence, the fourth option is correct.