Hilda spent
17 of her money on some rulers. She spent
16 of the remaining money on some highlighters and
35 of what was left on some files.
- What fraction of her money was spent on files?
- Given that the rulers cost $10 less than the files, find the sum of money that Hilda spent.
| Rulers |
Remaining money |
| 1 |
6 |
| |
Highlighters |
Left |
| |
1 |
5 |
| |
|
Files |
Rest |
| 1 u |
1 u |
3 u |
2 u |
(a)
Fraction of money left after spending on the rulers
= 1 -
17 =
67 Fraction of remaining money after spending on the highlighters
= 1 -
16 =
56 Fraction of what was left after spending on the files
= 1 -
35 =
25 Fraction of money that was spent on files =
37 (b)
Amount that Hilda spent on the rulers = 1 u
Amount that Hilda spent on the files = 3 u
Amount that the rulers cost less than the files
= 3 u - 1 u
= 2 u
2 u = 10
1 u = 10 ÷ 2 = 5
Amount that Hilda sent
= 1 u + 1 u + 3 u
= 5 u
= 5 x 5
= $25
Answer(s): (a)
37; (b) $25
