A total of 56 white staplers and pink staplers are in a container. The ratio of white staplers to pink staplers was 1 : 3. Some silver staplers and green staplers were put into the container. For every 7 pink staplers that were already in the container, 15 green ones were added. Then, the final number of white staplers and silver staplers was ¹₆ the final number of pink staplers and green staplers. Find the total number of silver and green staplers.

Silver staplers	White staplers	Pink staplers	Green staplers
	1x7	3x7
		7x3	15x3
1x11		6x11
4 u	7 u	21 u	45 u

The number of pink staplers is repeated.  Make the number of pink staplers the same.  LCM of 3 and 7 is 21.

The total number of pink staplers and green staplers is repeated.  Make the total number of pink and green staplers the same.  LCM of 66 and 6 is 66.

Total number of white staplers and pink staplers
= 7 u + 21 u
= 28 u

28 u = 56

1 u = 56 ÷ 28 = 2

Total number of silver and green staplers
= 4 u + 45 u
= 49 u
= 49 x 2
= 98

Answer(s): 98