Esther spent
310 of her money on some rulers. She spent
27 of the remaining money on some folders and
45 of what was left on some markers.
- What fraction of her money was left?
- Given that the markers cost $10 more than the folders, find the sum of money that Esther had at first.
| Rulers |
Remaining money |
| 3 |
7 |
| |
Folders |
Left |
| |
2 |
5 |
| |
|
Markers |
Rest |
| 3 u |
2 u |
4 u |
1 u |
(a)
Fraction of money left after spending on the rulers
= 1 -
310 =
710 Fraction of remaining money after spending on the folders
= 1 -
27 =
57 Fraction of what was left after spending on the markers
= 1 -
45 =
15 Fraction of money that was left =
110 (b)
Amount that Esther spent on the folders = 2 u
Amount that Esther spent on the markers = 4 u
Amount that the markers cost more than the folders
= 4 u - 2 u
= 2 u
2 u = 10
1 u = 10 ÷ 2 = 5
Amount that Esther had at first
= 10 u
= 10 x 5
= $50
Answer(s): (a)
110; (b) $50
