A total of 120 blue staplers and gold staplers are in a container. The ratio of blue staplers to gold staplers was 1 : 4. Some green staplers and white staplers were put into the container. For every 3 gold staplers that were already in the container, 4 white ones were added. Then, the final number of blue staplers and green staplers was ³₇ the final number of gold staplers and white staplers. Find the total number of green and white staplers.

Green staplers	Blue staplers	Gold staplers	White staplers
	1x3	4x3
		3x4	4x4
3x4		7x4
9 u	3 u	12 u	16 u

The number of gold staplers is repeated.  Make the number of gold staplers the same.  LCM of 4 and 3 is 12.

The total number of gold staplers and white staplers is repeated.  Make the total number of gold and white staplers the same.  LCM of 28 and 7 is 28.

Total number of blue staplers and gold staplers
= 3 u + 12 u
= 15 u

15 u = 120

1 u = 120 ÷ 15 = 8

Total number of green and white staplers
= 9 u + 16 u
= 25 u
= 25 x 8
= 200

Answer(s): 200