Question

If

$A+B$ means $A$ is the son of $B$;
$A-B$ means $A$ is the husband of $B$;

$A\times B$ means $A$ is the sister of $B$;
then which of the following shows the relation $Q$ is the maternal uncle of $P$ ?

• A. $P+B-R\times Q$
• B. $P-B+R\times Q$
• C. $P+B\times R-Q$
• D. $P\times B-R+Q$
• E. None of these

Answer 1

The correct option is A $P+B-R\times Q$

option A:

$P+B-R\times Q$

means $P$ is the son of $B$, who is the husband of $R$, who is the sister of $Q$.

means $P$ is the son of $B$ and $R$ and $R$'s sibling is $Q$

means $Q$ is the maternal uncle of $P$.

option B

$P-B+R\times Q$

means $P$ is the husband of $B$, who is the son of $R$ who is the sister of $Q$

$P$ and $B$ are husband and wife and they have a son $R$ and daughter $Q$

option C

$P+B\times R-Q$

means $P$ is the son of $B$, who is the sister of $R$, who is the husband of $Q$

$R$ and $Q$ are husband and wife. $B$ is $R$'s sister and $P$ is her son.

option D

$P\times B-R+Q$

means $P$ is the sister of $B$, who is the husband of $R$, who is the son of $Q$.

gives wrong conclusion that B is husband of R who is a male, son of Q.

So, only option A gives the desired relation.