There are 90 stickers in Container D and 55 stickers in Container E.
Some stickers are transferred from Container D to Container E.
Container D has 5 more stickers than Container E.
How many stickers are transferred from Container D to Container E?
|
Container D |
Container E |
Before |
90 |
55 |
Change |
- ? |
+ ? |
After |
1 u + 5 |
1 u |
Total number of stickers
= 90 + 55
= 145
Total number of stickers in the end = 1 u + 5 + 1 u = 2 u + 5
The total number of stickers at first and in the end remains unchanged.
2 u + 5 = 145
2 u = 145 - 5 = 140
1 u = 140 ÷ 2 = 70
Number of stickers that are transferred from Container D to Container E
= Number of stickers in Container E in the end - Number of stickers in Container E at first
= 70 - 55
= 15
Answer(s): 15