There are 50 stickers in Box V and 50 stickers in Box W.
Some stickers are transferred from Box V to Box W.
Box W has 20 more stickers than Box V.
How many stickers are transferred from Box V to Box W?
|
Box V |
Box W |
Before |
50 |
50 |
Change |
- ? |
+ ? |
After |
1 u |
1 u + 20 |
Total number of stickers
= 50 + 50
= 100
In the end
Total number of stickers = 1 u + 1 u + 20 = 2 u + 20
The total number of stickers at first and in the end remains unchanged.
2 u + 20 = 100
2 u = 100 - 20 = 80
1 u = 80 ÷ 2 = 40
Number of stickers that are transferred from Box V to Box W
= Number of stickers in Box V at first - Number of stickers in Box V in the end
= 50 - 40
= 10
Answer(s): 10