There are 45 stickers in Box A and 35 stickers in Box B.
Some stickers are transferred from Box A to Box B.
Box B has 10 more stickers than Box A.
How many stickers are transferred from Box A to Box B?
|
Box A |
Box B |
Before |
45 |
35 |
Change |
- ? |
+ ? |
After |
1 u |
1 u + 10 |
Total number of stickers
= 45 + 35
= 80
In the end
Total number of stickers = 1 u + 1 u + 10 = 2 u + 10
The total number of stickers at first and in the end remains unchanged.
2 u + 10 = 80
2 u = 80 - 10 = 70
1 u = 70 ÷ 2 = 35
Number of stickers that are transferred from Box A to Box B
= Number of stickers in Box A at first - Number of stickers in Box A in the end
= 45 - 35
= 10
Answer(s): 10