Dana had 4 times as many stamps as Kylie at first. After Dana gave 15 stamps to Kylie, they each had the same number of stamps in the end. How many stamps did Kylie have in the end?
| |
Dana |
Kylie |
| Before |
4 u |
1 u |
| Change |
- 15 |
+ 15 |
| After |
4 u - 15 |
1 u + 15 |
Comparing Dana and
Kylie in the end |
1 |
1 |
The number of stamps that Dana and Kylie had in the end is equal.
4 u - 15 = 1 u + 15
4 u - 1 u = 15 + 15
3 u = 30
1 u = 10
Number of stamps that Kylie had in the end
= 1 u + 15
= 10 + 15
= 25
Answer(s): 25
