Shannon had 280 buttons. Fabian had 12 of what Shannon had. After Shannon used some of his buttons and Fabian used 17 of his buttons, Shannon had 14 as many buttons left as Fabian.
- How many buttons did Fabian have at first?
- How many buttons did Shannon use?
| |
Shannon |
Fabian |
| Before |
280 |
140 |
| Change |
- ? |
- 20 |
| After |
30 |
120 |
(a)
Number of buttons that Fabian had at first
=
12 x 280
= 140
(b)
Number of buttons that Fabian used
=
17 x 140
= 20
Number of buttons that Fabian had left
= 140 - 20
= 120
Number of buttons that Shannon had left
=
14 x 120
= 30
Number of buttons that Shannon used
= 280 - 30
= 250
Answer(s): (a) 140; (b) 250
