Which of the following are statements and which are not ? Give reasons for your answers.
His birth day is 29th Febrauary.

Answer

To determine whether "His birthday is 29th February" is a statement or not, we need to analyze the definition of a statement in mathematical reasoning.

### Step-by-Step Solution:

1. **Understanding Statements**: A statement is a declarative sentence that is either true or false, but not both.

2. **Analyzing the Given Sentence**: The sentence "His birthday is 29th February" refers to someone's birthday, but it does not specify who "he" is.

3. **Evaluating Truth Value**: Since the sentence does not provide enough information to identify the subject (who "his" refers to), we cannot determine if the statement is true or false. For example, if "he" refers to a person born on February 29, then the statement is true. However, if "he" refers to someone who was not born on that date, then the statement is false.

4. **Conclusion**: Because the sentence lacks clarity about the subject and does not provide a definitive truth value, it does not meet the criteria for being a statement.

### Final Answer:
Therefore, the given sentence "His birthday is 29th February" is **not a statement**.

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