question_answer

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', then which of the following relations shows that 'I is the niece of K'?

A)  \[K+Y\times l-Z\]          

B)  \[K\times Y-l-Z\]     

C)  \[Z-l\times Y+K\]          

D)  K+Y+Z-l

Correct Answer: A

Solution :

: Let us discuss option [a]. K + Y means, K is the brother of Y \[Y\times I\] means, Y is the father of I I - Z means, I is the sister of Z    Clearly K's brother is Y and Y's daughter is I.