Fanny spent
111 of her money on some glues. She spent
310 of the remaining money on some rulers and
37 of what was left on some files.
- What fraction of her money was spent on files?
- Given that the glues cost $6 less than the files, find the sum of money that Fanny spent.
| Glues |
Remaining money |
| 1 |
10 |
| |
Rulers |
Left |
| |
3 |
7 |
| |
|
Files |
Rest |
| 1 u |
3 u |
3 u |
4 u |
(a)
Fraction of money left after spending on the glues
= 1 -
111 =
1011 Fraction of remaining money after spending on the rulers
= 1 -
310 =
710 Fraction of what was left after spending on the files
= 1 -
37 =
47 Fraction of money that was spent on files =
311 (b)
Amount that Fanny spent on the glues = 1 u
Amount that Fanny spent on the files = 3 u
Amount that the glues cost less than the files
= 3 u - 1 u
= 2 u
2 u = 6
1 u = 6 ÷ 2 = 3
Amount that Fanny sent
= 1 u + 3 u + 3 u
= 7 u
= 7 x 3
= $21
Answer(s): (a)
311; (b) $21
