There are 85 stickers in Container U and 85 stickers in Container V.
Some stickers are transferred from Container U to Container V.
Container V has 60 more stickers than Container U.
How many stickers are transferred from Container U to Container V?

	Container U	Container V
Before	85	85
Change	- ?	+ ?
After	1 u	1 u + 60

Total number of stickers
= 85 + 85
= 170

In the end
Total number of stickers = 1 u + 1 u + 60 = 2 u + 60

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

2 u + 60 = 170
2 u = 170 - 60 = 110

1 u = 110 ÷ 2 = 55

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

Answer(s): 30