Question : Directions: A + B means A is the sister 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 wife of B.
If A + B – C ÷ D × E – F, then which of the following statements is NOT correct?
Option 1: C is the mother of F
Option 2: E is the brother of B
Option 3: A is the sister of the wife of D
Option 4: A is the sister of C
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Correct Answer: E is the brother of B
Solution : 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:
C is the mother of F – From the above family tree, it's clear that E is the brother of F, and E is the Son of C. So, C is the mother of F as well. Therefore, this option is correct.
Second option:
E is the brother of B – From the above family tree, it's clear that E is the brother of F, and B is the uncle of E. Therefore, this option is incorrect.
Third option:
A is the sister of the wife of D – From the above family tree, it's clear that A is the sister of C, and C is D's wife. So, A is the sister of the wife of D. Therefore, this option is correct.
Fourth option:
A is the sister of C – From the above family tree, it's clear that A is the sister of B and C. Therefore, this option is correct.
So, only the second option does not depict the correct relation, as per the family tree. Hence, the second option is correct.
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