PSLE Zoe wanted to buy a windbreaker. She saw a white windbreaker on sale at 15% discount and a grey windbreaker at 35% discount. Both windbreakers had the same original price before the discounts. To buy the white windbreaker, Zoe would need $9.40 more that what she had. So Zoe bought the grey windbreaker. After that, she had $17 left.
- What was the original price of the white windbreaker?
- How much money did Zoe have at first?
|
White windbreaker |
Grey windbreaker |
Before |
100% |
100% |
Change |
- 15% |
- 35% |
After |
85% |
65% |
(a)
Difference in the discount between the white windbreaker and the grey windbreaker
= 35% - 15%
= 20%
Additional amount that Zoe needed to pay if she would buy the white windbreaker
= 9.40 + 17
= $26.40
20% → 26.40
100% →
26.4020 x 100 = 132
Original price of the white windbreaker = $132
(b)
Price of the grey windbreaker after discount in percentage
= 100% - 35%
= 65%
Price of the grey windbreaker after discount
=
65100 x 132
= $85.80
Amount that Zoe had at first
= 85.80 + 17
= $102.80
Answer(s): (a) $132; (b) $102.80