There are 55 stickers in Container K and 55 stickers in Container L.
Some stickers are transferred from Container K to Container L.
Container L has 50 more stickers than Container K.
How many stickers are transferred from Container K to Container L?

	Container K	Container L
Before	55	55
Change	- ?	+ ?
After	1 u	1 u + 50

Total number of stickers
= 55 + 55
= 110

In the end
Total number of stickers = 1 u + 1 u + 50 = 2 u + 50

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

2 u + 50 = 110
2 u = 110 - 50 = 60

1 u = 60 ÷ 2 = 30

Number of stickers that are transferred from Container K to Container L
= Number of stickers in Container K at first - Number of stickers in Container K in the end
= 55 - 30
= 25

Answer(s): 25