Helen spent $50 on a shirt. She spent
29 of her remaining money on a blazer and a windbreaker, after which half her money was left.
- What fraction of her money did she spend on the shirt?
- The cost of the windbreaker is 14 the cost of the blazer. How much more does the blazer cost than the windbreaker?
Shirt |
Remaining amount |
|
Blazer |
Windbreaker |
Left |
$50 |
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 shirt
=
ShirtTotal =
514 (b)
Cost of the shirt = 5 u
5 u = 50
1 u = 50 ÷ 5 = 10
Cost of the blazer and the windbreaker
= 2 u
= 2 x 10
= $20
Cost of the windbreaker = 1 p
Cost of the blazer = 4 p
Total cost of the windbreaker and the blazer
= 1 p + 4 p
= 5 p
5 p = 20
1 p = 20 ÷ 5 = 4
Amount that the blazer was more than the windbreaker
= 4 p - 1 p
= 3 p
= 3 x 4
= $12
Answer(s): (a)
514; (b) $12