Dana spent
110 of her money on some notebooks. She spent
29 of the remaining money on some rulers and
37 of what was left on some markers.
- What fraction of her money was spent on markers?
- Given that the notebooks cost $12 less than the markers, find the sum of money that Dana spent.
| Notebooks |
Remaining money |
| 1 |
9 |
| |
Rulers |
Left |
| |
2 |
7 |
| |
|
Markers |
Rest |
| 1 u |
2 u |
3 u |
4 u |
(a)
Fraction of money left after spending on the notebooks
= 1 -
110 =
910 Fraction of remaining money after spending on the rulers
= 1 -
29 =
79 Fraction of what was left after spending on the markers
= 1 -
37 =
47 Fraction of money that was spent on markers =
310 (b)
Amount that Dana spent on the notebooks = 1 u
Amount that Dana spent on the markers = 3 u
Amount that the notebooks cost less than the markers
= 3 u - 1 u
= 2 u
2 u = 12
1 u = 12 ÷ 2 = 6
Amount that Dana sent
= 1 u + 2 u + 3 u
= 6 u
= 6 x 6
= $36
Answer(s): (a)
310; (b) $36
