David had
710 as many buttons as Gwen. After David gave away 59 buttons, he had 95 less buttons than Gwen. How many buttons did Gwen have?
| |
David |
Gwen |
| Before |
7 u |
10 u |
| Change |
- 59 |
|
| After |
7 u - 59 |
10 u |
Gwen had 95 more buttons than David in the end. So, if David had another 95 buttons, he would have the same number of buttons as Gwen.
10 u = 7 u - 59 + 95
10 u - 7 u = 95 - 59
3 u = 36
1 u = 36 ÷ 3 = 12
Number of buttons that Gwen had at first
= 10 u
= 10 x 12
= 120
Answer: 120
