There are 95 stickers in Box A and 85 stickers in Box B.
Some stickers are transferred from Box A to Box B.
Box B has 50 more stickers than Box A.
How many stickers are transferred from Box A to Box B?
|
Box A |
Box B |
Before |
95 |
85 |
Change |
- ? |
+ ? |
After |
1 u |
1 u + 50 |
Total number of stickers
= 95 + 85
= 180
In the end
Total number of stickers = 1 u + 1 u + 50 = 2 u + 50
The total number of stickers at first and in the end remains unchanged.
2 u + 50 = 180
2 u = 180 - 50 = 130
1 u = 130 ÷ 2 = 65
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
= 95 - 65
= 30
Answer(s): 30