PSLE
Nicole wanted to buy a vest. She saw a blue vest on sale at 10% discount and a red vest at 20% discount. Both vests had the same original price before the discounts. To buy the blue vest, Nicole would need $6.20 more that what she had. So Nicole bought the red vest. After that, she had $15 left.

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

	Blue vest	Red vest
Before	100%	100%
Change	- 10%	- 20%
After	90%	80%

(a)
Difference in the discount between the blue vest and the red vest
= 20% - 10%
= 10%

Additional amount that Nicole needed to pay if she would buy the blue vest
= 6.20 + 15
= $21.20

10% →  21.20
100% → ^21.20₁₀ x 100 = 212

Original price of the blue vest = $212

(b)
Price of the red vest after discount in percentage
= 100% - 20%
= 80%

Price of the red vest after discount
= ⁸⁰₁₀₀ x 212
= $169.60

Amount that Nicole had at first
= 169.60 + 15
= $184.60

Answer(s): (a) $212; (b) $184.60