Warren and Zara shared some buttons equally. After Zara bought 77 buttons and Warren gave 104 buttons away, they had 269 buttons left. How many buttons did each of them have at first?
| |
Warren |
Zara |
Total |
| Before |
1 u |
1 u |
|
| Change |
+ 77 |
- 104 |
|
| After |
1 u + 77 |
1 u - 104 |
269 |
Warren and Zara had the same number of buttons at first.
Total number of buttons in the end
= 1 u + 77 + 1 u - 104
= 1 u + 1 u + 77 - 104
= 2 u - 27
2 u - 27 = 269
2 u = 269 + 27
2 u = 296
1 u = 296 ÷ 2 = 148
Number of buttons that each of them had at first
= 1 u
= 148
Answer(s): 148
