Cindy spent
18 of her money on some glues. She spent
27 of the remaining money on some files and
45 of what was left on some markers.
- What fraction of her money was left?
- Given that the markers cost $4 more than the files, find the sum of money that Cindy had at first.
| Glues |
Remaining money |
| 1 |
7 |
| |
Files |
Left |
| |
2 |
5 |
| |
|
Markers |
Rest |
| 1 u |
2 u |
4 u |
1 u |
(a)
Fraction of money left after spending on the glues
= 1 -
18 =
78 Fraction of remaining money after spending on the files
= 1 -
27 =
57 Fraction of what was left after spending on the markers
= 1 -
45 =
15 Fraction of money that was left =
18 (b)
Amount that Cindy spent on the files = 2 u
Amount that Cindy spent on the markers = 4 u
Amount that the markers cost more than the files
= 4 u - 2 u
= 2 u
2 u = 4
1 u = 4 ÷ 2 = 2
Amount that Cindy had at first
= 8 u
= 8 x 2
= $16
Answer(s): (a)
18; (b) $16
