Question : Directions: If R ÷ S means that R is the mother of S, R × S means that R is the father of S and R – S means that R is the sister of S, then which of the following expressions shows that P is the father of R?
Option 1: P × Q ÷ R
Option 2: Q × P – R
Option 3: R × Q – P
Option 4: P × Q – R
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Correct Answer: P × Q – R
Solution : Let's check the options – First option: P × Q ÷ R According to the given expression, the family tree will be as follows – Here, the quadrilateral represents the male, and the circular figure represents the female in the figure. From the above family tree, it is evident that P is the maternal grandfather of R. Second option: Q × P – R According to the given expression, the family tree will be as follows – Here, the quadrilateral represents the male, and the circular figure represents the female in the figure. From the above family tree, it is evident that P is the sister of R. Third option: R × Q – P According to the given expression, the family tree will be as follows – Here, the quadrilateral represents the male, and the circular figure represents the female in the figure. From the above family tree, it is evident that P can either be the daughter or the son of R, as the gender of P is undefined. Fourth option: P × Q – R According to the given expression, the family tree will be as follows –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure. From the above family tree, it is evident that P is the father of R.
So, only the expression in the fourth option satisfies the relation given in the question. Hence, the fourth option is correct.
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Question : Directions: If X – Y means that X is the mother of Y, X × Y means that X is the father of Y and X ÷ Y means that X is the sister of Y, then which of the following expressions shows that Q is the son of P?
Question : Directions: If S – T means that S is the mother of T, S × T means that S is the father of T, and S + T means that S is the sister of T, then which of the following expressions shows that P is the mother of R?
Question : Directions: If X × Y means that X is the mother of Y, X – Y means that X is the father of Y, and X ÷ Y means that X is the sister of Y, then which of the following expressions shows that P is the paternal grandfather of R?
Question : Directions: If A × B means that A is the mother of B, A – B means that A is the father of B, and A ÷ B means that A is the sister of B, then which of the following expressions shows that P is the paternal grandmother of R?
Question : Directions: If L × M means that L is the mother of M, L – M means that L is the father of M, and L ÷ M means that L is the sister of M, then which of the following expressions shows that R is the brother of P?
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