Gillian had 5 times as many buttons as Julie at first. After Gillian gave 10 buttons to Julie, they each had the same number of buttons in the end. How many buttons did Gillian have at first?
| |
Gillian |
Julie |
| Before |
5 u |
1 u |
| Change |
- 10 |
+ 10 |
| After |
5 u - 10 |
1 u + 10 |
Comparing Gillian and
Julie in the end |
1 |
1 |
The number of buttons that Gillian and Julie had in the end is equal.
5 u - 10 = 1 u + 10
5 u - 1 u = 10 + 10
4 u = 20
1 u = 5
Number of buttons that Gillian had at first
= 5 u
= 5 x 5
= 25
Answer(s): 25
