Natalie spent
111 of her money on some notebooks. She spent
310 of the remaining money on some glues and
47 of what was left on some pens.
- What fraction of her money was spent on pens?
- Given that the notebooks cost $18 less than the pens, find the sum of money that Natalie spent.
| Notebooks |
Remaining money |
| 1 |
10 |
| |
Glues |
Left |
| |
3 |
7 |
| |
|
Pens |
Rest |
| 1 u |
3 u |
4 u |
3 u |
(a)
Fraction of money left after spending on the notebooks
= 1 -
111 =
1011 Fraction of remaining money after spending on the glues
= 1 -
310 =
710 Fraction of what was left after spending on the pens
= 1 -
47 =
37 Fraction of money that was spent on pens =
411 (b)
Amount that Natalie spent on the notebooks = 1 u
Amount that Natalie spent on the pens = 4 u
Amount that the notebooks cost less than the pens
= 4 u - 1 u
= 3 u
3 u = 18
1 u = 18 ÷ 3 = 6
Amount that Natalie sent
= 1 u + 3 u + 4 u
= 8 u
= 8 x 6
= $48
Answer(s): (a)
411; (b) $48
