Solution: First, evaluate the boundary values. \(\frac{5}{2} = 2.5\). Since \(\pi \approx 3.1416\), we have \(3\pi \approx 9.4248\). We seek whole numbers \(n\) such that \(2.5 < n < 9.4248\). These are \(3, 4, 5, 6, 7, 8, 9\). Counting them, there are 7 whole numbers. Therefore, the answer is \(\boxed{7}\).

Wed, 06 May 2026 14:37:45 +0000

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