PSLE
Jen wanted to buy a windbreaker. She saw a blue windbreaker on sale at 25% discount and a black windbreaker at 40% discount. Both windbreakers had the same original price before the discounts. To buy the blue windbreaker, Jen would need $8.70 more that what she had. So Jen bought the black windbreaker. After that, she had $6 left.

1. What was the original price of the blue windbreaker?
2. How much money did Jen have at first?

	Blue windbreaker	Black windbreaker
Before	100%	100%
Change	- 25%	- 40%
After	75%	60%

(a)
Difference in the discount between the blue windbreaker and the black windbreaker
= 40% - 25%
= 15%

Additional amount that Jen needed to pay if she would buy the blue windbreaker
= 8.70 + 6
= $14.70

15% →  14.70
100% → ^14.70₁₅ x 100 = 98

Original price of the blue windbreaker = $98

(b)
Price of the black windbreaker after discount in percentage
= 100% - 40%
= 60%

Price of the black windbreaker after discount
= ⁶⁰₁₀₀ x 98
= $58.80

Amount that Jen had at first
= 58.80 + 6
= $64.80

Answer(s): (a) $98; (b) $64.80