Mia is planning on laying down tile in a rectangular room that is 15 feet by 17 feet. If each tile has an area of 3 square feet and the tiles fit evenly with no gaps between them, how many tiles should Mia buy?

A. 75
B. 85
C. 225
D. 255



Answer :

Alright, let's solve the problem step-by-step.

1. Determine the dimensions of the room:
- The room is 15 feet long and 17 feet wide.

2. Calculate the area of the room:
- Area = Length × Width
- Area = 15 feet × 17 feet
- Area = 255 square feet

3. Determine the area of each tile:
- Given that each tile has an area of 3 square feet.

4. Calculate the number of tiles needed:
- Number of tiles = Area of the room / Area of one tile
- Number of tiles = 255 square feet / 3 square feet per tile
- Number of tiles = 85 tiles

So, Mia should buy 85 tiles. The correct answer is:
B. 85