Hilda spent
17 of her money on some notebooks. She spent
16 of the remaining money on some rulers and
45 of what was left on some folders.
- What fraction of her money was spent on folders?
- Given that the notebooks cost $27 less than the folders, find the sum of money that Hilda spent.
| Notebooks |
Remaining money |
| 1 |
6 |
| |
Rulers |
Left |
| |
1 |
5 |
| |
|
Folders |
Rest |
| 1 u |
1 u |
4 u |
1 u |
(a)
Fraction of money left after spending on the notebooks
= 1 -
17 =
67 Fraction of remaining money after spending on the rulers
= 1 -
16 =
56 Fraction of what was left after spending on the folders
= 1 -
45 =
15 Fraction of money that was spent on folders =
47 (b)
Amount that Hilda spent on the notebooks = 1 u
Amount that Hilda spent on the folders = 4 u
Amount that the notebooks cost less than the folders
= 4 u - 1 u
= 3 u
3 u = 27
1 u = 27 ÷ 3 = 9
Amount that Hilda sent
= 1 u + 1 u + 4 u
= 6 u
= 6 x 9
= $54
Answer(s): (a)
47; (b) $54
