Fanny spent
110 of her money on some rulers. She spent
29 of the remaining money on some notebooks and
47 of what was left on some post-it pads.
- What fraction of her money was left?
- Given that the post-it pads cost $18 more than the notebooks, find the sum of money that Fanny had at first.
| Rulers |
Remaining money |
| 1 |
9 |
| |
Notebooks |
Left |
| |
2 |
7 |
| |
|
Post-it Pads |
Rest |
| 1 u |
2 u |
4 u |
3 u |
(a)
Fraction of money left after spending on the rulers
= 1 -
110 =
910 Fraction of remaining money after spending on the notebooks
= 1 -
29 =
79 Fraction of what was left after spending on the post-it pads
= 1 -
47 =
37 Fraction of money that was left =
310 (b)
Amount that Fanny spent on the notebooks = 2 u
Amount that Fanny spent on the post-it pads = 4 u
Amount that the post-it pads cost more than the notebooks
= 4 u - 2 u
= 2 u
2 u = 18
1 u = 18 ÷ 2 = 9
Amount that Fanny had at first
= 10 u
= 10 x 9
= $90
Answer(s): (a)
310; (b) $90
