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 paternal uncle of R?
Option 1: P – R ÷ Q
Option 2: P ÷ R × Q
Option 3: P × R – Q
Option 4: P ÷ Q – R
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Correct Answer: P ÷ Q – R
Solution :
Let's check each option –
First option:
P – R ÷ Q
According to the given information, the family tree will be –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure. So, P is the father of R.
Second option:
P ÷ R × Q
According to the given information, the family tree will be –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure. So, P is the brother of R.
Third option:
P × R – Q
According to the given information, the family tree will be –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure. So, P is the sister of R.
Fourth option:
P ÷ Q – R
According to the given information, the family tree will be –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure. So, P is the paternal uncle of R.
Hence, the fourth option is correct.
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