There are 70 stickers in Container V and 35 stickers in Container W.
Some stickers are transferred from Container V to Container W.
Container W has 15 more stickers than Container V.
How many stickers are transferred from Container V to Container W?

	Container V	Container W
Before	70	35
Change	- ?	+ ?
After	1 u	1 u + 15

Total number of stickers
= 70 + 35
= 105

In the end
Total number of stickers = 1 u + 1 u + 15 = 2 u + 15

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

2 u + 15 = 105
2 u = 105 - 15 = 90

1 u = 90 ÷ 2 = 45

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
= 70 - 45
= 25

Answer(s): 25