Question

If $m + n$ means $m$ is sister of $n$, $m - n$ means $m$ is brother of $n$, $m 	imes n$ means $m$ is daughter of $n$, $m \div n$ means $m$ is mother of $n$, How many females can be shown by the given relationship? $$a + b - c + d - e 	imes f$$

Accepted Answer

D. Analyzing the expression $a + b - c + d - e 	imes f$: - $a + b \implies a$ is female (sister of $b$). - $b - c \implies b$ is male (brother of $c$). - $c + d \implies c$ is female (sister of $d$). - $d - e \implies d$ is male (brother of $e$). - $e 	imes f \implies e$ is female (daughter of $f$). - $f$: gender of $f$ is not specified (could be male or female). Since the gender of $f$ cannot be determined, the total number of females cannot be determined conclusively.

Count Females in Relationship

Explanation

Practise this under exam conditions