There are 95 stickers in Container S and 20 stickers in Container T.
Some stickers are transferred from Container S to Container T.
Container T has 15 more stickers than Container S.
How many stickers are transferred from Container S to Container T?

	Container S	Container T
Before	95	20
Change	- ?	+ ?
After	1 u	1 u + 15

Total number of stickers
= 95 + 20
= 115

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 = 115
2 u = 115 - 15 = 100

1 u = 100 ÷ 2 = 50

Number of stickers that are transferred from Container S to Container T
= Number of stickers in Container S at first - Number of stickers in Container S in the end
= 95 - 50
= 45

Answer(s): 45