There are 80 stickers in Container K and 10 stickers in Container L.
Some stickers are transferred from Container K to Container L.
Container K has 10 more stickers than Container L.
How many stickers are transferred from Container K to Container L?
|
Container K |
Container L |
Before |
80 |
10 |
Change |
- ? |
+ ? |
After |
1 u + 10 |
1 u |
Total number of stickers
= 80 + 10
= 90
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 = 90
2 u = 90 - 10 = 80
1 u = 80 ÷ 2 = 40
Number of stickers that are transferred from Container K to Container L
= Number of stickers in Container L in the end - Number of stickers in Container L at first
= 40 - 10
= 30
Answer(s): 30