Tina had four times as much money as Fiona. After Tina spent $12 and Fiona spent $8, Tina had $23 more than Fiona. How much did Tina have in the end?
| |
Tina |
Fiona |
| Before |
4 u |
1 u |
| Change |
- $12 |
- $8 |
| After |
4 u - $12 |
1 u - $8 |
Comparing Tina
and Fiona
in the end |
$23 more |
|
If Fiona was given another $23, the amounts that Tina and Fiona each had in the end would be the same.
4 u - 12 = 1 u - 8 + 23
4 u - 1 u = 12 + 15
3 u = 27
1 u = 27 ÷ 3 = 9
Amount that Tina had in the end
= 4 u - 12
= 4 x 9 - 12
= 36 - 12
= $24
Answer(s): $24
