Civil Services Examination · प्रश्न 3

Each item contains a question followed by two statements. Answer using these instructions: (a) if the question can be answered using one of the statements alone, but cannot be answered using the other statement (b) if the question can be answered using either statement alone (c) if the question can be answered using both the statements together, but cannot be answered using either statement alone (d) if the question cannot be answered even using any of the statements Question: If x and y are integers, then is x even? Statement I: x²y² is even. Statement II: 1 + x² + y² is odd.

1. AAnswerable using one statement alone, but not the other
2. BAnswerable using either statement alone
3. CAnswerable using both statements together, but not either alone
4. DCannot be answered even using both statements