PSLE
Elyse wanted to buy a dress. She saw a purple dress on sale at 25% discount and a yellow dress at 35% discount. Both dresses had the same original price before the discounts. To buy the purple dress, Elyse would need $6.40 more that what she had. So Elyse bought the yellow dress. After that, she had $10 left.

1. What was the original price of the purple dress?
2. How much money did Elyse have at first?

	Purple dress	Yellow dress
Before	100%	100%
Change	- 25%	- 35%
After	75%	65%

(a)
Difference in the discount between the purple dress and the yellow dress
= 35% - 25%
= 10%

Additional amount that Elyse needed to pay if she would buy the purple dress
= 6.40 + 10
= $16.40

10% →  16.40
100% → ^16.40₁₀ x 100 = 164

Original price of the purple dress = $164

(b)
Price of the yellow dress after discount in percentage
= 100% - 35%
= 65%

Price of the yellow dress after discount
= ⁶⁵₁₀₀ x 164
= $106.60

Amount that Elyse had at first
= 106.60 + 10
= $116.60

Answer(s): (a) $164; (b) $116.60