There are 95 stickers in Box R and 35 stickers in Box S.
Some stickers are transferred from Box R to Box S.
Box R has 20 more stickers than Box S.
How many stickers are transferred from Box R to Box S?
|
Box R |
Box S |
Before |
95 |
35 |
Change |
- ? |
+ ? |
After |
1 u + 20 |
1 u |
Total number of stickers
= 95 + 35
= 130
Total number of stickers in the end = 1 u + 20 + 1 u = 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 R to Box S
= Number of stickers in Box S in the end - Number of stickers in Box S at first
= 55 - 35
= 20
Answer(s): 20