There are 95 stickers in Box A and 60 stickers in Box B.
Some stickers are transferred from Box A to Box B.
Box A has 15 more stickers than Box B.
How many stickers are transferred from Box A to Box B?
|
Box A |
Box B |
Before |
95 |
60 |
Change |
- ? |
+ ? |
After |
1 u + 15 |
1 u |
Total number of stickers
= 95 + 60
= 155
Total number of stickers in the end = 1 u + 15 + 1 u = 2 u + 15
The total number of stickers at first and in the end remains unchanged.
2 u + 15 = 155
2 u = 155 - 15 = 140
1 u = 140 ÷ 2 = 70
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
= 70 - 60
= 10
Answer(s): 10