Q + J means “Q is the Husband of J”
Q – J means “Q is the Father of J”
Q × J means “Q is the Mother of J”
Q @ J means “Q is the Daughter of J”
If D @ V + B × U, how is D related to U?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Sister.
The diagram is,

(In above diagram, circle represents female, square represents male, double line means married couple, single line means siblings, vertical line shows generational gap.)
From the above tree, D is the sister of U.