The usual price of a marker sold at Shop H and J is $40. During a sale, a discount of 25% is given to every marker sold at Shop H. At Shop J, a discount of 40% is given to the 5th marker for every 5 markers sold. How much cheaper would it be if Winnie buys 12 markers from Shop H instead of Shop J?

	Shop H	Shop J
Price of 1 marker	75%  $30	100% $40
Every 5th marker		60% $24

Price of 1 marker from Shop H in percentage
= 100% - 25%
= 75%

Price of 1 marker from Shop H at 25% discount
= 75% x 40
= ⁷⁵₁₀₀ x 40 
= $30

Cost of 12 markers from Shop H
= 12 x 30
= $360

Price of the 5th marker from Shop J in percentage
= 100% - 40%
= 60%

Cost of 5th marker at Shop J
= 60% x 40
= ⁶⁰₁₀₀ x 40 
= $24

Cost of 1 set of 5 markers at Shop J
= 40 x 4 + 24
= $184

Number of sets of 5 for markers at Shop J
= 12 ÷ 5
= 2 r 2

Cost of 2 sets of 5 markers at Shop J
= 2 x 184
= $368

Cost of 2 markers at Shop J
= 2 x 24
= $48

Cost of 12 markers at Shop J
= 368 + 48
= $416

Amount cheaper if Winnie buys 12 markers from Shop H instead of Shop J
= 416 - 360
= $56

Answer(s): $56