To answer this question, first, we will convert 36 pounds to ounces, and then we will divide the result by 20.
Recall that:
[tex]1lb=16\text{oz.}[/tex]Therefore:
[tex]36\text{lb}=36\cdot16oz=576oz.[/tex]Dividing the above result by 20 we get:
[tex]\frac{576oz}{20}=28.8oz\text{.}[/tex]Answer: Each tile has a weight of 28.8oz.