In coded relation type questions, the relationships are represented by certain codes or symbols such as + , - , ÷ , × , * etc. Then relationships between certain persons, given in the form of these codes, are to be analysed.
A + B means A is the father of B ;
A - B means A is the wife of B ;
A x B means A is the brother of B ;
A ÷ B means A is the daughter of B.
If P x R - Q, which of the following is true ?
Justification: P x R - Q means P is the brother of R who is the wife of Q i.e. P is the brother-in-law of Q.