Determine the AP whose fifth term is 19 and the difference of the eighth term from the thirteenth term is 20.

Explanation

To determine the Arithmetic Progression (AP) whose fifth term is 19 and the difference between the eighth term and the thirteenth term is 20, we can follow these steps:

### Step 1: Understand the formula for the nth term of an AP
The nth term of an AP can be expressed as:
\[ a_n = a + (n - 1) \cdot d \]
where:
- \( a \) is the first term,
- \( d \) is the common difference,
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