In a flower bed, there are 23 rose plants in the first row, 21 in the second, 19 in the third, and so on. There are 5 rose plants in the last row. How many rows are there in the flower bed?

Explanation

To solve the problem step by step, we will analyze the number of rose plants in each row and identify the arithmetic progression.

### Step-by-Step Solution:

1. **Identify the Sequence**:
The number of rose plants in each row starts at 23 and decreases by 2 for each subsequent row. The sequence is:
- 1st row: 23
- 2nd row: 21
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