There are 70 stickers in Box A and 10 stickers in Box B.
Some stickers are transferred from Box A to Box B.
Box A has 10 more stickers than Box B.
How many stickers are transferred from Box A to Box B?
|
Box A |
Box B |
Before |
70 |
10 |
Change |
- ? |
+ ? |
After |
1 u + 10 |
1 u |
Total number of stickers
= 70 + 10
= 80
Total number of stickers in the end = 1 u + 10 + 1 u = 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 B in the end - Number of stickers in Box B at first
= 35 - 10
= 25
Answer(s): 25