There are 45 stickers in Box X and 10 stickers in Box Y.
Some stickers are transferred from Box X to Box Y.
Box X has 5 more stickers than Box Y.
How many stickers are transferred from Box X to Box Y?
|
Box X |
Box Y |
Before |
45 |
10 |
Change |
- ? |
+ ? |
After |
1 u + 5 |
1 u |
Total number of stickers
= 45 + 10
= 55
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 = 55
2 u = 55 - 5 = 50
1 u = 50 ÷ 2 = 25
Number of stickers that are transferred from Box X to Box Y
= Number of stickers in Box Y in the end - Number of stickers in Box Y at first
= 25 - 10
= 15
Answer(s): 15