There are 100 stickers in Container H and 60 stickers in Container J.
Some stickers are transferred from Container H to Container J.
Container H has 10 more stickers than Container J.
How many stickers are transferred from Container H to Container J?

	Container H	Container J
Before	100	60
Change	- ?	+ ?
After	1 u + 10	1 u

Total number of stickers
= 100 + 60
= 160

Total number of stickers in the end = 1 u + 10 + 1 u = 2 u + 10

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

2 u + 10 = 160
2 u = 160 - 10 = 150

1 u = 150 ÷ 2 = 75

Number of stickers that are transferred from Container H to Container J
= Number of stickers in Container J in the end - Number of stickers in Container J at first
= 75 - 60
= 15

Answer(s): 15