There are 50 stickers in Container Q and 50 stickers in Container R.
Some stickers are transferred from Container Q to Container R.
Container R has 30 more stickers than Container Q.
How many stickers are transferred from Container Q to Container R?
|
Container Q |
Container R |
Before |
50 |
50 |
Change |
- ? |
+ ? |
After |
1 u |
1 u + 30 |
Total number of stickers
= 50 + 50
= 100
In the end
Total number of stickers = 1 u + 1 u + 30 = 2 u + 30
The total number of stickers at first and in the end remains unchanged.
2 u + 30 = 100
2 u = 100 - 30 = 70
1 u = 70 ÷ 2 = 35
Number of stickers that are transferred from Container Q to Container R
= Number of stickers in Container Q at first - Number of stickers in Container Q in the end
= 50 - 35
= 15
Answer(s): 15