PSLE
Mrs Lee bought a dress and a ring at a discount. She spent a total of $66.10 on these two items. She spent $6.70 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 $18.90. She was given a 10% 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 + 6.70

Total amount spent on the dress and the ring
= 1 u + 1 u + 6.70
= 2 u + 6.70

2 u + 6.70 = 66.10
2 u = 66.10 - 6.70
2 u = 59.40

1 u = 59.40 ÷ 2 = 29.70

Amount that Mrs Lee spent on the ring
= 29.70 + 6.70
= $36.40

(b)

	Dress	Ring	Total
Original price	100%	$52
Discount	10%  $3.30	$15.60	$18.90
Discounted price	90% $29.70	$36.40	$66.10

Discounted price of the dress
= 100% - 10%
= 90%

90% of the price of the dress = 29.70
1% of the price of the dress = 29.70 ÷ 90
10% of the price of the dress = 29.70 ÷ 90 x 10 = 3.30

Discount given for the ring
= 18.90 - 3.30
= $15.60

Original price of the ring
= 36.40 + 15.60
= $52

Percentage discount of the ring
= ^15.60₅₂ x 100%
= 30%

Answer(s): (a) $36.40; (b) 30%