Pamela spent
17 of her money on some staplers. She spent
16 of the remaining money on some notebooks and
35 of what was left on some glues.
- What fraction of her money was spent on glues?
- Given that the staplers cost $20 less than the glues, find the sum of money that Pamela spent.
| Staplers |
Remaining money |
| 1 |
6 |
| |
Notebooks |
Left |
| |
1 |
5 |
| |
|
Glues |
Rest |
| 1 u |
1 u |
3 u |
2 u |
(a)
Fraction of money left after spending on the staplers
= 1 -
17 =
67 Fraction of remaining money after spending on the notebooks
= 1 -
16 =
56 Fraction of what was left after spending on the glues
= 1 -
35 =
25 Fraction of money that was spent on glues =
37 (b)
Amount that Pamela spent on the staplers = 1 u
Amount that Pamela spent on the glues = 3 u
Amount that the staplers cost less than the glues
= 3 u - 1 u
= 2 u
2 u = 20
1 u = 20 ÷ 2 = 10
Amount that Pamela sent
= 1 u + 1 u + 3 u
= 5 u
= 5 x 10
= $50
Answer(s): (a)
37; (b) $50
