A total of 70 green folders and white folders are in a container. The ratio of green folders to white folders was 1 : 6. Some grey folders and pink folders were put into the container. For every 5 white folders that were already in the container, 3 pink ones were added. Then, the final number of green folders and grey folders was ¹₄ the final number of white folders and pink folders. Find the total number of grey and pink folders.

Grey folders	Green folders	White folders	Pink folders
	1x5	6x5
		5x6	3x6
1x12		4x12
7 u	5 u	30 u	18 u

The number of white folders is repeated.  Make the number of white folders the same.  LCM of 6 and 5 is 30.

The total number of white folders and pink folders is repeated.  Make the total number of white and pink folders the same.  LCM of 48 and 4 is 48.

Total number of green folders and white folders
= 5 u + 30 u
= 35 u

35 u = 70

1 u = 70 ÷ 35 = 2

Total number of grey and pink folders
= 7 u + 18 u
= 25 u
= 25 x 2
= 50

Answer(s): 50