A carpenter was hired to build 192 window frames. The first day he made five frames and each day thereafter he made two more frames than he made the day before. How many days did it take him to finish the job?

Explanation

To solve the problem step by step, we can follow these instructions:

### Step 1: Understand the Problem
The carpenter needs to build a total of 192 window frames. On the first day, he makes 5 frames, and each subsequent day he makes 2 more frames than the previous day.

### Step 2: Identify the Sequence
The number of frames made each day forms an arithmetic progression (AP):
- Day 1: 5 frames
...