Kimberly spent
111 of her money on some foolscaps. She spent
310 of the remaining money on some pens and
37 of what was left on some glues.
- What fraction of her money was spent on glues?
- Given that the foolscaps cost $6 less than the glues, find the sum of money that Kimberly spent.
| Foolscaps |
Remaining money |
| 1 |
10 |
| |
Pens |
Left |
| |
3 |
7 |
| |
|
Glues |
Rest |
| 1 u |
3 u |
3 u |
4 u |
(a)
Fraction of money left after spending on the foolscaps
= 1 -
111 =
1011 Fraction of remaining money after spending on the pens
= 1 -
310 =
710 Fraction of what was left after spending on the glues
= 1 -
37 =
47 Fraction of money that was spent on glues =
311 (b)
Amount that Kimberly spent on the foolscaps = 1 u
Amount that Kimberly spent on the glues = 3 u
Amount that the foolscaps cost less than the glues
= 3 u - 1 u
= 2 u
2 u = 6
1 u = 6 ÷ 2 = 3
Amount that Kimberly sent
= 1 u + 3 u + 3 u
= 7 u
= 7 x 3
= $21
Answer(s): (a)
311; (b) $21
