A * B means A and B are of the same age;
A - B means B is younger than A;
A + B means A is younger than B;

For an expression Farha - Farida - Arif, which of the following cannot be correct under any circumstances ?

A. Arif is the father of Farha.
B. Arif is the younger brother of Farha.
C. Farha is the mother of both Arig and Farida.
D. None of these
Answer: A . Arif is the father of Farha.


Farha - Farida - Arif means Farida is younger than Farha and Arif is younger than Farida.
This means that Arif is younger tha Farha. So, Arif cannot be the father of Farha.