There are 80 stickers in Container K and 55 stickers in Container L.
Some stickers are transferred from Container K to Container L.
Container K has 15 more stickers than Container L.
How many stickers are transferred from Container K to Container L?
|
Container K |
Container L |
Before |
80 |
55 |
Change |
- ? |
+ ? |
After |
1 u + 15 |
1 u |
Total number of stickers
= 80 + 55
= 135
Total number of stickers in the end = 1 u + 15 + 1 u = 2 u + 15
The total number of stickers at first and in the end remains unchanged.
2 u + 15 = 135
2 u = 135 - 15 = 120
1 u = 120 ÷ 2 = 60
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
= 60 - 55
= 5
Answer(s): 5