Question
A total of 264 silver folders and pink folders are in a container. The ratio of silver folders to pink folders was 2 : 9. Some brown folders and yellow folders were put into the container. For every 6 pink folders that were already in the container, 3 yellow ones were added. Then, the final number of silver folders and brown folders was 13 the final number of pink folders and yellow folders. Find the total number of brown and yellow folders.
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A total of 264 silver folders and pink folders are in a container. The ratio of silver folders to pink folders was 2 : 9. Some brown folders and yellow folders were put into the container. For every 6 pink folders that were already in the container, 3 yellow ones were added. Then, the final number of silver folders and brown folders was 13 the final number of pink folders and yellow folders. Find the total number of brown and yellow folders.