There are 45 stickers in Box W and 30 stickers in Box X.
Some stickers are transferred from Box W to Box X.
Box X has 25 more stickers than Box W.
How many stickers are transferred from Box W to Box X?
|
Box W |
Box X |
Before |
45 |
30 |
Change |
- ? |
+ ? |
After |
1 u |
1 u + 25 |
Total number of stickers
= 45 + 30
= 75
In the end
Total number of stickers = 1 u + 1 u + 25 = 2 u + 25
The total number of stickers at first and in the end remains unchanged.
2 u + 25 = 75
2 u = 75 - 25 = 50
1 u = 50 ÷ 2 = 25
Number of stickers that are transferred from Box W to Box X
= Number of stickers in Box W at first - Number of stickers in Box W in the end
= 45 - 25
= 20
Answer(s): 20