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?
Option 1: Q – P + R
Option 2: P – Q + R
Option 3: P × Q + R
Option 4: R + Q – P
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Correct Answer: P – Q + R
Solution : Let's check the options – First 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. Second 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 mother of R. Third 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. Fourth 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 nephew or niece of R, as the gender of P is undefined.
So, only the expression in the second option satisfies the relation given in the question. Hence, the second option is correct.
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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?
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 P is the father 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 Q is the son of P?
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 father of B, A + B means that A is the mother of B, and A × B means that A is the brother of B, then which of the following expressions shows that Q is the brother of P?
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