PSLE
Shannon wanted to buy a blouse. She saw a silver blouse on sale at 10% discount and a purple blouse at 30% discount. Both blouses had the same original price before the discounts. To buy the silver blouse, Shannon would need $5.80 more that what she had. So Shannon bought the purple blouse. After that, she had $2 left.

1. What was the original price of the silver blouse?
2. How much money did Shannon have at first?

	Silver blouse	Purple blouse
Before	100%	100%
Change	- 10%	- 30%
After	90%	70%

(a)
Difference in the discount between the silver blouse and the purple blouse
= 30% - 10%
= 20%

Additional amount that Shannon needed to pay if she would buy the silver blouse
= 5.80 + 2
= $7.80

20% →  7.80
100% → ^7.80₂₀ x 100 = 39

Original price of the silver blouse = $39

(b)
Price of the purple blouse after discount in percentage
= 100% - 30%
= 70%

Price of the purple blouse after discount
= ⁷⁰₁₀₀ x 39
= $27.30

Amount that Shannon had at first
= 27.30 + 2
= $29.30

Answer(s): (a) $39; (b) $29.30