There are 85 stickers in Box S and 60 stickers in Box T.
Some stickers are transferred from Box S to Box T.
Box S has 5 more stickers than Box T.
How many stickers are transferred from Box S to Box T?
|
Box S |
Box T |
Before |
85 |
60 |
Change |
- ? |
+ ? |
After |
1 u + 5 |
1 u |
Total number of stickers
= 85 + 60
= 145
Total number of stickers in the end = 1 u + 5 + 1 u = 2 u + 5
The total number of stickers at first and in the end remains unchanged.
2 u + 5 = 145
2 u = 145 - 5 = 140
1 u = 140 ÷ 2 = 70
Number of stickers that are transferred from Box S to Box T
= Number of stickers in Box T in the end - Number of stickers in Box T at first
= 70 - 60
= 10
Answer(s): 10