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If the average of n consecutive integers...

If the average of n consecutive integers equal to 1?
(1) n is even.
(2) If S is the sum of the n consecutive integers, then `0ltSltn`

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To solve the problem of whether the average of \( n \) consecutive integers can equal 1, we will analyze the two statements provided. ### Step-by-Step Solution: 1. **Understanding the Average of Consecutive Integers**: The average of \( n \) consecutive integers can be expressed as: \[ \text{Average} = \frac{S}{n} \] where \( S \) is the sum of the \( n \) consecutive integers. 2. **Statement 1: \( n \) is even**: - If \( n \) is even, then the integers can be represented as: \[ x, x+1, x+2, \ldots, x+n-1 \] - The sum \( S \) of these integers is: \[ S = nx + \frac{(n-1)n}{2} \] - The average becomes: \[ \text{Average} = \frac{S}{n} = x + \frac{(n-1)}{2} \] - Since \( n \) is even, \( \frac{(n-1)}{2} \) is a half-integer, making the average \( x + \text{half-integer} \), which cannot equal 1 (an integer) for any integer \( x \). - **Conclusion**: If \( n \) is even, the average cannot equal 1. Thus, Statement 1 is sufficient. 3. **Statement 2: \( 0 < S < n \)**: - The average can also be expressed as: \[ \text{Average} = \frac{S}{n} \] - Given that \( S < n \), we can substitute: \[ \text{Average} < \frac{n}{n} = 1 \] - Since \( S > 0 \), we can also say: \[ \text{Average} > 0 \] - Therefore, the average must be greater than 0 but less than 1, which means it cannot equal 1. - **Conclusion**: Statement 2 is also sufficient to conclude that the average cannot equal 1. ### Final Conclusion: Both statements are sufficient to determine that the average of \( n \) consecutive integers cannot equal 1.
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