There are 85 stickers in Container V and 50 stickers in Container W.
Some stickers are transferred from Container V to Container W.
Container W has 25 more stickers than Container V.
How many stickers are transferred from Container V to Container W?

	Container V	Container W
Before	85	50
Change	- ?	+ ?
After	1 u	1 u + 25

Total number of stickers
= 85 + 50
= 135

In the end
Total number of stickers = 1 u + 1 u + 25 = 2 u + 25

The total number of stickers at first and in the end remains unchanged.

2 u + 25 = 135
2 u = 135 - 25 = 110

1 u = 110 ÷ 2 = 55

Number of stickers that are transferred from Container V to Container W
= Number of stickers in Container V at first - Number of stickers in Container V in the end
= 85 - 55
= 30

Answer(s): 30