To determine the cost per room for each company, let's break down the charges.
-
Carpet Cleaning Pros:
- They charge $40 per room.
-
Spot On Cleaning:
- They charge $300 to clean six rooms.
- To find the cost per room, we divide the total cost by the number of rooms: \[ \text{Cost per room} = \frac{300}{6} = 50 \] So, Spot On Cleaning charges $50 per room.
Now we can compare the two:
- Carpet Cleaning Pros: $40 per room
- Spot On Cleaning: $50 per room
The least expensive company is Carpet Cleaning Pros, which charges $40 per room.