Dylan and Xavier had a total of 151 buttons at first. After Dylan bought 28 more buttons and Xavier gave away 17 buttons, Dylan now has the same number of buttons as Xavier. How many buttons did Dylan have at first?
|
Dylan |
Xavier |
Total |
Before |
1 u - 28 |
1 u + 17 |
151 |
Change |
+ 28 |
- 17 |
|
After |
1 u |
1 u |
162 |
Total number of buttons in the end
= 151 + 28 - 17
= 162
2 u = 162
1 u = 162 ÷ 2 = 81
Number of buttons that Dylan had in the end
= 1 u
= 81
Number of buttons that Dylan had at first
= 81 - 28
= 53
Answer(s): 53