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 sister of P?
Option 1: P × Q + R
Option 2: P + R × Q
Option 3: P × Q ÷ R
Option 4: Q × P ÷ 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 Q is the brother of P. Second option: P + R × Q 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 Q's gender is undefined. Q can either be the son or daughter of P. 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 Q is the sister of P. Fourth 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 Q is the brother of P.
So, only the expression in the third option satisfies the relation given in the question. Hence, the third option is correct.
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Question : Directions: If A × B means that A is the brother of B, A ÷ B means that A is the sister of B, and A + B means that A is the father of B, then which of the following expressions shows that P is the sister of R?
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Question : Directions: If A + B means that A is the brother of B, A × B means that A is the sister of B, and A ÷ B means that A is the father of B, then which of the following expressions shows that P is the sister of R?
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