There are 65 stickers in Box L and 65 stickers in Box M.
Some stickers are transferred from Box L to Box M.
Box M has 20 more stickers than Box L.
How many stickers are transferred from Box L to Box M?
|
Box L |
Box M |
Before |
65 |
65 |
Change |
- ? |
+ ? |
After |
1 u |
1 u + 20 |
Total number of stickers
= 65 + 65
= 130
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 = 130
2 u = 130 - 20 = 110
1 u = 110 ÷ 2 = 55
Number of stickers that are transferred from Box L to Box M
= Number of stickers in Box L at first - Number of stickers in Box L in the end
= 65 - 55
= 10
Answer(s): 10