There are 85 stickers in Box R and 40 stickers in Box S.
Some stickers are transferred from Box R to Box S.
Box S has 35 more stickers than Box R.
How many stickers are transferred from Box R to Box S?
|
Box R |
Box S |
Before |
85 |
40 |
Change |
- ? |
+ ? |
After |
1 u |
1 u + 35 |
Total number of stickers
= 85 + 40
= 125
In the end
Total number of stickers = 1 u + 1 u + 35 = 2 u + 35
The total number of stickers at first and in the end remains unchanged.
2 u + 35 = 125
2 u = 125 - 35 = 90
1 u = 90 ÷ 2 = 45
Number of stickers that are transferred from Box R to Box S
= Number of stickers in Box R at first - Number of stickers in Box R in the end
= 85 - 45
= 40
Answer(s): 40