Answer :
The ratio will change because you will be buying some from what the ratio shows.
There are 14 cheese croissants and 21 plain ones, if you buy one of the cheese ones there will be 13 cheese croissants left which changes the ratio.
There are 14 cheese croissants and 21 plain ones, if you buy one of the cheese ones there will be 13 cheese croissants left which changes the ratio.