Xavier had
25 as many buttons as Barbara. After Xavier gave away 59 buttons, he had 65 less buttons than Barbara. How many buttons did Barbara have?
| |
Xavier |
Barbara |
| Before |
2 u |
5 u |
| Change |
- 59 |
|
| After |
2 u - 59 |
5 u |
Barbara had 65 more buttons than Xavier in the end. So, if Xavier had another 65 buttons, he would have the same number of buttons as Barbara.
5 u = 2 u - 59 + 65
5 u - 2 u = 65 - 59
3 u = 6
1 u = 6 ÷ 3 = 2
Number of buttons that Barbara had at first
= 5 u
= 5 x 2
= 10
Answer: 10
