Which term of the AP `53`, `48`, `43`, … is the first negative term ?

Explanation

To find the first negative term of the arithmetic progression (AP) given by 53, 48, 43, ..., we will follow these steps:

### Step 1: Identify the first term and common difference
The first term \( a \) of the AP is:
\[ a = 53 \]
To find the common difference \( d \), we subtract the first term from the second term:
...