There are 45 stickers in Container R and 10 stickers in Container S.
Some stickers are transferred from Container R to Container S.
Container S has 5 more stickers than Container R.
How many stickers are transferred from Container R to Container S?
|
Container R |
Container S |
Before |
45 |
10 |
Change |
- ? |
+ ? |
After |
1 u |
1 u + 5 |
Total number of stickers
= 45 + 10
= 55
In the end
Total number of stickers = 1 u + 1 u + 5 = 2 u + 5
The total number of stickers at first and in the end remains unchanged.
2 u + 5 = 55
2 u = 55 - 5 = 50
1 u = 50 ÷ 2 = 25
Number of stickers that are transferred from Container R to Container S
= Number of stickers in Container R at first - Number of stickers in Container R in the end
= 45 - 25
= 20
Answer(s): 20