During a promotion, the discount given by Shop F and Shop G are as shown:
Shop F - Discount of $8 for every $40 spent
Shop G - 25% off Storewide

1. Mary wants to buy a blazer. The price of the blazer before discount in both shops is $330. What is the savings that Mary makes if she buys at the shop that sells the same blazer cheaper?
2. Joelle bought a coat and a blouse from Shop F and paid $288. What was the total cost of the coat and the blouse before the discount?
3. The price of the same blouse after discount at Shop G is $145.50. Given that the price of the blouse before discount is the same in both shops, what is the percentage discount given to the blouse at Shop F? Round off the answer to 1 decimal place.

(a)
Amount to pay at Shop F for every $40 spent
= 40 - 8
= $32

Number of sets of $40 in $330
= 330 ÷ 40
= 8 r 10

Discounted price of the blazer at Shop F
= 8 x 32 + 10
= $266

Discounted price of the blazer at Shop G
= 75% x 330 
= ⁷⁵₁₀₀ x 330 
= $247.50

Amount of savings
= 266 - 247.50
= $18.50

(b)
Number of sets of $32 in $288
= 288 ÷ 32
= 9

Total cost of the coat and the blouse
= 9 x 40
= $360

(c)

	Shop F	Shop G
Original Price	$194	$194
Discount	- $32	- 25%
Discounted Price	$162	$145.50

Original price of the blouse at Shop G before discount
= 145.50 ÷ ⁷⁵₁₀₀
= $194

If the original price of the blouse at Shop F and Shop G is the same, the original price of the blouse at Shop F is $194.

Number of sets of $40 in $194
= 194 ÷ 40
= 4 r 34

Discounted price of the blouse at Shop F
= 4 x 32 + 34
= $162

Discount given for the blouse at Shop F
= 194 - 162
= $32

Percent discount given to the blouse at Shop F
= 100% x ³²₁₉₄ 
≈ 16.5%

Answer(s): (a) $18.50; (b) $360; (c) 16.5%