Consider the following :

$A + B$ means $A$ is the son of $B$ .

$A - B$ means $A$ is the wife of $B$ .

What does the expression $P + R - Q$ mean?

$Q$ is the son of $P$ .

$Q$ is the wife of $P$ .

$Q$ is the father of $P$ .

None of the above

Kepler. Discussing PYQs. Q.no. 19

Consider the following : A+BA + BA+B means AAA is the son of BBB . A−BA - BA−B means AAA is the wife of BBB . What does the expression P+R−QP + R - QP+R−Q mean?