Jane spent
110 of her money on some staplers. She spent
29 of the remaining money on some pens and
37 of what was left on some pencils.
- What fraction of her money was spent on pencils?
- Given that the staplers cost $20 less than the pencils, find the sum of money that Jane spent.
| Staplers |
Remaining money |
| 1 |
9 |
| |
Pens |
Left |
| |
2 |
7 |
| |
|
Pencils |
Rest |
| 1 u |
2 u |
3 u |
4 u |
(a)
Fraction of money left after spending on the staplers
= 1 -
110 =
910 Fraction of remaining money after spending on the pens
= 1 -
29 =
79 Fraction of what was left after spending on the pencils
= 1 -
37 =
47 Fraction of money that was spent on pencils =
310 (b)
Amount that Jane spent on the staplers = 1 u
Amount that Jane spent on the pencils = 3 u
Amount that the staplers cost less than the pencils
= 3 u - 1 u
= 2 u
2 u = 20
1 u = 20 ÷ 2 = 10
Amount that Jane sent
= 1 u + 2 u + 3 u
= 6 u
= 6 x 10
= $60
Answer(s): (a)
310; (b) $60
