Helen spent $80 on a vest. She spent
29 of her remaining money on a skirt and a coat, after which half her money was left.
- What fraction of her money did she spend on the vest?
- The cost of the coat is 13 the cost of the skirt. How much more does the skirt cost than the coat?
Vest |
Remaining amount |
|
Skirt |
Coat |
Left |
$80 |
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 vest
=
VestTotal =
514 (b)
Cost of the vest = 5 u
5 u = 80
1 u = 80 ÷ 5 = 16
Cost of the skirt and the coat
= 2 u
= 2 x 16
= $32
Cost of the coat = 1 p
Cost of the skirt = 3 p
Total cost of the coat and the skirt
= 1 p + 3 p
= 4 p
4 p = 32
1 p = 32 ÷ 4 = 8
Amount that the skirt was more than the coat
= 3 p - 1 p
= 2 p
= 2 x 8
= $16
Answer(s): (a)
514; (b) $16