PSLE
Risa wanted to buy a jacket. She saw a pink jacket on sale at 20% discount and a green jacket at 35% discount. Both jackets had the same original price before the discounts. To buy the pink jacket, Risa would need $9.90 more that what she had. So Risa bought the green jacket. After that, she had $15 left.

1. What was the original price of the pink jacket?
2. How much money did Risa have at first?

	Pink jacket	Green jacket
Before	100%	100%
Change	- 20%	- 35%
After	80%	65%

(a)
Difference in the discount between the pink jacket and the green jacket
= 35% - 20%
= 15%

Additional amount that Risa needed to pay if she would buy the pink jacket
= 9.90 + 15
= $24.90

15% →  24.90
100% → ^24.90₁₅ x 100 = 166

Original price of the pink jacket = $166

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

Price of the green jacket after discount
= ⁶⁵₁₀₀ x 166
= $107.90

Amount that Risa had at first
= 107.90 + 15
= $122.90

Answer(s): (a) $166; (b) $122.90