Kimberly spent
111 of her money on some notebooks. She spent
310 of the remaining money on some files and
37 of what was left on some pens.
- What fraction of her money was spent on pens?
- Given that the notebooks cost $14 less than the pens, find the sum of money that Kimberly spent.
| Notebooks |
Remaining money |
| 1 |
10 |
| |
Files |
Left |
| |
3 |
7 |
| |
|
Pens |
Rest |
| 1 u |
3 u |
3 u |
4 u |
(a)
Fraction of money left after spending on the notebooks
= 1 -
111 =
1011 Fraction of remaining money after spending on the files
= 1 -
310 =
710 Fraction of what was left after spending on the pens
= 1 -
37 =
47 Fraction of money that was spent on pens =
311 (b)
Amount that Kimberly spent on the notebooks = 1 u
Amount that Kimberly spent on the pens = 3 u
Amount that the notebooks cost less than the pens
= 3 u - 1 u
= 2 u
2 u = 14
1 u = 14 ÷ 2 = 7
Amount that Kimberly sent
= 1 u + 3 u + 3 u
= 7 u
= 7 x 7
= $49
Answer(s): (a)
311; (b) $49
