Helen spent $60 on a windbreaker. She spent
29 of her remaining money on a coat and a skirt, after which half her money was left.
- What fraction of her money did she spend on the windbreaker?
- The cost of the skirt is 13 the cost of the coat. How much more does the coat cost than the skirt?
Windbreaker |
Remaining amount |
|
Coat |
Skirt |
Left |
$60 |
2 |
7 |
1x7 |
1x7 |
5 u |
2 u |
7 u |
(a)
The amount of money left is repeated. Make the numerators the same LCM of 1 and 7 is 7.
1x72x7 of total money =
79 of remaining amount
714 of total money =
79 of remaining amount
Fraction of her money that she spent on the windbreaker
=
WindbreakerTotal =
514 (b)
Cost of the windbreaker = 5 u
5 u = 60
1 u = 60 ÷ 5 = 12
Cost of the coat and the skirt
= 2 u
= 2 x 12
= $24
Cost of the skirt = 1 p
Cost of the coat = 3 p
Total cost of the skirt and the coat
= 1 p + 3 p
= 4 p
4 p = 24
1 p = 24 ÷ 4 = 6
Amount that the coat was more than the skirt
= 3 p - 1 p
= 2 p
= 2 x 6
= $12
Answer(s): (a)
514; (b) $12