Question

If

$P+Q$ means $P$ is the brother of $Q$;

$P\times Q$ means $P$ is the father of $Q$ and

$P-Q$ means $P$ is the sister of $Q$,

Which of the following relations shows that $I$ is the niece of $K$ ?

• A. $K+Y+Z-I$
• B. $K+Y\times I-Z$
• C. $Z-I\times Y+K$
• D. $K\times Y+I-Z$

Answer 1

The correct option is B $K+Y\times I-Z$

$K+Y\to K$ is the brother of $Y$
$Y\times I\to Y$ is the father of $I$
Hence, $\to K$ is the uncle of $I$
and $I-Z\to I$ is the sister of $Z$
Hence, $\to I$ is the niece of $K$

option B.