PSLE
Roshel wanted to buy a vest. She saw a blue vest on sale at 15% discount and a green vest at 35% discount. Both vests had the same original price before the discounts. To buy the blue vest, Roshel would need $5.40 more that what she had. So Roshel bought the green vest. After that, she had $19 left.

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

	Blue vest	Green vest
Before	100%	100%
Change	- 15%	- 35%
After	85%	65%

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

Additional amount that Roshel needed to pay if she would buy the blue vest
= 5.40 + 19
= $24.40

20% →  24.40
100% → ^24.40₂₀ x 100 = 122

Original price of the blue vest = $122

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

Price of the green vest after discount
= ⁶⁵₁₀₀ x 122
= $79.30

Amount that Roshel had at first
= 79.30 + 19
= $98.30

Answer(s): (a) $122; (b) $98.30