Lynn spent
311 of her money on some pencils. She spent
18 of the remaining money on some folders and
37 of what was left on some glues.
- What fraction of her money was left?
- Given that the glues cost $4 more than the folders, find the sum of money that Lynn had at first.
| Pencils |
Remaining money |
| 3 |
8 |
| |
Folders |
Left |
| |
1 |
7 |
| |
|
Glues |
Rest |
| 3 u |
1 u |
3 u |
4 u |
(a)
Fraction of money left after spending on the pencils
= 1 -
311 =
811 Fraction of remaining money after spending on the folders
= 1 -
18 =
78 Fraction of what was left after spending on the glues
= 1 -
37 =
47 Fraction of money that was left =
411 (b)
Amount that Lynn spent on the folders = 1 u
Amount that Lynn spent on the glues = 3 u
Amount that the glues cost more than the folders
= 3 u - 1 u
= 2 u
2 u = 4
1 u = 4 ÷ 2 = 2
Amount that Lynn had at first
= 11 u
= 11 x 2
= $22
Answer(s): (a)
411; (b) $22
