MR Zheng sold a total of 576 muffins and cookies the ratio of the number of muffins sold to the number of muffin sold to the number of cookies sold was 4:5> how many muffin were sold and how many more cookies that muffins were sold

Answer 1

576/9 = 64
So, there were

4*64 muffins
5*64 cookies

Answer 2

Divide 576 by 9, then multiply by 4 for muffins and 5 for cookies.

256 muffins
320 cookies