Question : Directions: In a certain code language,
A + B means A is the wife of B;
A – B means A is the brother of B;
A × B means A is the father of B;
A ÷ B means A is the mother of B.
Based on the above, if P × Q + R – S ÷ T, which of the following is true?
Option 1: T is the son of S
Option 2: Q is the sister of S
Option 3: R is T's mother's brother
Option 4: P is the father of R
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Correct Answer: R is T's mother's brother
Solution :
Given:
Q + R means Q is the wife of R
R – S means R is the brother of S
P × Q means P is the father of Q
S ÷ T means S is the mother of T
According to the given information, the family tree will be as follows –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
Let's check the options –
First option:
T is the son of S – From the above family tree, it is evident that T can either be the son or daughter of S as T's gender is undefined. Therefore, this option is incorrect.
Second option:
Q is the sister of S – From the above family tree, it is evident that R is the brother of S and Q is R's wife. So, Q is the sister-in-law of S. Therefore, this option is incorrect.
Third option:
R is T's mother's brother – From the above family tree, it is evident that S is the mother of T and R is the brother of S. So, R is T's mother's brother. Therefore, this option is correct.
Fourth option:
P is the father of R – From the above family tree, it is evident that P is the father of Q and Q is R's wife. So, P is the father-in-law of R. Therefore, this option is incorrect.
Hence, the third option is correct.
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