question_answer

Directions: Use the relationships defined below to solve questions.

(i) \['\text{P}\times \text{Q}'\]means 'P is the father of Q'.

(ii) \['\text{P}*\text{Q}'\] means 'P is the sister of Q'.

(iii) \['\text{P}+\text{Q}'\] means 'P is the brother of Q'.

(iv) \['\text{P}-\text{Q}'\] means 'P is the mother of Q'.

(v) \['\text{P}\div \text{Q}'\] means 'P is the son of Q'.

(vi) \['\text{P}=\text{Q}'\] means 'P is the daughter of Q'.

                If\[\text{Z}=\text{X}-\text{Y}\], which of the following is true?

A) Z is a sister of Y.

B) Y is a sister of Z.

C) X is a mother of two daughters.

D) Z is a grandfather of Y.

Correct Answer: A

Solution :

\[Z=X\] Means Z is the daughter of X and \[\text{X}-\text{Y}\] means X is the mother of Y. i.e., Z is the sister of Y.