How many 18 inch by 18 inch tiles do you need to cover a 16' by 16' room and can you show me how to convert?

Answer 1

A foot is 12 inches, which means 18 inches is equal to 18/12 = 1.5 feet. However, 2(1.5) = 3 (which is the base of all integer answers to this), and 16/3 is irreducible, so we may not tile the whole floor with 18 by 18 inch tiles (only a 15' by 15' area). Note that it would be easier if the tiles were not squares, since flipping the tiles would make it more functional.

According to my calculation:

1feet = 12 inches

so 16' x 16' = 192" x 192" inch2 --> (16'x16')/(18"x18") = 113.78. Which means you need approximately 114 tiles to fill the room. This is only possible if you are able to cut the tiles, which is not a parameter in the problem.