Question

Sam is tiling a floor. He will use the same repeating pattern for the entire floor. The rule is "Blue Tile, White Tile, Black Tile." If he uses 85 tiles, how many will be black? Enter your answer in the box.

Answer 1

In the repeating pattern "Blue Tile, White Tile, Black Tile," there are three tiles. Thus, the number of black tiles in the 85 tiles will be 85 divided by 3, which is 28 with a remainder of 1. So there will be 28 black tiles. Answer: \boxed{28}.