PSLE
Mrs Seth bought a dress and a ring at a discount. She spent a total of $64.40 on these two items. She spent $23.80 more on the ring than on the dress.

1. How much did she spend on the ring?
2. The total discount given for the two items was $27.60. She was given a 30% discount for the dress. What was the percentage discount given for the ring?

(a)
Amount spent on the dress = 1 u
Amount spent on the ring = 1 u + 23.80

Total amount spent on the dress and the ring
= 1 u + 1 u + 23.80
= 2 u + 23.80

2 u + 23.80 = 64.40
2 u = 64.40 - 23.80
2 u = 40.60

1 u = 40.60 ÷ 2 = 20.30

Amount that Mrs Seth spent on the ring
= 20.30 + 23.80
= $44.10

(b)

	Dress	Ring	Total
Original price	100%	$63
Discount	30%  $8.70	$18.90	$27.60
Discounted price	70% $20.30	$44.10	$64.40

Discounted price of the dress
= 100% - 30%
= 70%

70% of the price of the dress = 20.30
1% of the price of the dress = 20.30 ÷ 70
30% of the price of the dress = 20.30 ÷ 70 x 30 = 8.70

Discount given for the ring
= 27.60 - 8.70
= $18.90

Original price of the ring
= 44.10 + 18.90
= $63

Percentage discount of the ring
= ^18.90₆₃ x 100%
= 30%

Answer(s): (a) $44.10; (b) 30%