Exams › SSC CGL (Prelims) › Reasoning

In a certain code language, 'A & B' means 'A is the brother of B', 'A x B' means 'A is the father of B', 'A ? B' means 'A is the mother of B', and 'A ! B' means 'A is the wife of B'. Which of the following means that W is the mother's mother of P?

1. W ? R ! Y & O x P
2. W ? R x Y ! O & P
3. W & R ! Y x O ? P
4. W ! R x Y ? O & P

Correct answer: W ! R x Y ? O & P

Solution

The expression must show W as the mother of someone who is also the mother of P. In the correct chain, W is connected through family relations so that W becomes the maternal grandmother of P, i.e., the mother's mother.

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