PSLE
Jade wanted to buy a shirt. She saw a pink shirt on sale at 10% discount and a silver shirt at 30% discount. Both shirts had the same original price before the discounts. To buy the pink shirt, Jade would need $4.80 more that what she had. So Jade bought the silver shirt. After that, she had $17 left.

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

	Pink shirt	Silver shirt
Before	100%	100%
Change	- 10%	- 30%
After	90%	70%

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

Additional amount that Jade needed to pay if she would buy the pink shirt
= 4.80 + 17
= $21.80

20% →  21.80
100% → ^21.80₂₀ x 100 = 109

Original price of the pink shirt = $109

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

Price of the silver shirt after discount
= ⁷⁰₁₀₀ x 109
= $76.30

Amount that Jade had at first
= 76.30 + 17
= $93.30

Answer(s): (a) $109; (b) $93.30