l = a + (n-1)d \implies 996 = 108 + (n-1) \cdot 12

Fri, 01 May 2026 06:23:08 +0000

Understanding the Formula: How to Solve for n Using L = a + (n – 1)d
With Step-by-Step Example: 996 = 108 + (n – 1) × 12 --- When it comes to arithmetic progressions, one of the most useful formulas is: L = a + (n – 1)d