Helen spent $20 on a jumpsuit. She spent
29 of her remaining money on a dress and a coat, after which half her money was left.
- What fraction of her money did she spend on the jumpsuit?
- The cost of the coat is 13 the cost of the dress. How much more does the dress cost than the coat?
| Jumpsuit |
Remaining amount |
| |
Dress |
Coat |
Left |
| $20 |
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 jumpsuit
=
JumpsuitTotal =
514 (b)
Cost of the jumpsuit = 5 u
5 u = 20
1 u = 20 ÷ 5 = 4
Cost of the dress and the coat
= 2 u
= 2 x 4
= $8
Cost of the coat = 1 p
Cost of the dress = 3 p
Total cost of the coat and the dress
= 1 p + 3 p
= 4 p
4 p = 8
1 p = 8 ÷ 4 = 2
Amount that the dress was more than the coat
= 3 p - 1 p
= 2 p
= 2 x 2
= $4
Answer(s): (a)
514; (b) $4
