Nora spent
19 of her money on some markers. She spent
18 of the remaining money on some rulers and
47 of what was left on some notebooks.
- What fraction of her money was spent on notebooks?
- Given that the markers cost $12 less than the notebooks, find the sum of money that Nora spent.
| Markers |
Remaining money |
| 1 |
8 |
| |
Rulers |
Left |
| |
1 |
7 |
| |
|
Notebooks |
Rest |
| 1 u |
1 u |
4 u |
3 u |
(a)
Fraction of money left after spending on the markers
= 1 -
19 =
89 Fraction of remaining money after spending on the rulers
= 1 -
18 =
78 Fraction of what was left after spending on the notebooks
= 1 -
47 =
37 Fraction of money that was spent on notebooks =
49 (b)
Amount that Nora spent on the markers = 1 u
Amount that Nora spent on the notebooks = 4 u
Amount that the markers cost less than the notebooks
= 4 u - 1 u
= 3 u
3 u = 12
1 u = 12 ÷ 3 = 4
Amount that Nora sent
= 1 u + 1 u + 4 u
= 6 u
= 6 x 4
= $24
Answer(s): (a)
49; (b) $24
