Andy gave
29 of his buttons to Elijah,
27 of his remaining buttons to Bryan and
25 of the rest of his buttons to Jenson. He then had 15 buttons left. How many buttons had he at first?
| Elijah |
Remaining buttons |
Total |
| 2 u |
7 u |
9 u |
| |
Bryan |
Rest of the buttons |
|
| |
2 u |
5 u |
|
| |
|
Jenson |
Left |
|
| |
|
2 u |
3 u |
|
| |
|
|
15 |
|
Number of buttons that Andy had before = 9 u
Number of buttons that Andy gave to Elijah = 2 u
Number of buttons that Andy gave to Bryan = 2 u
Number of buttons that Andy gave to Jenson = 2 u
Number of buttons that Andy had left = 3 u
3 u = 15
1 u = 15 ÷ 3 = 5
Number of buttons that Andy had at first
= 9 u
= 9 u x 5
= 45
Answer(s): 45
