2024 AMC 8 Problems/Problem 7
Problem
A rectangle is covered without overlap by 3 shapes of tiles:
,
, and
, shown below. What is the minimum possible number of $1x1 tiles used?
(A)$ (Error compiling LaTeX. Unknown error_msg)12
3
4
5$
Solution 1
We can eliminate B, C, and D, because they are not any multiple of
. Finally, we see that there is no way to have A, so the solution is
.