The usual price of a pen sold at Shop V and W is $32. During a sale, a discount of 25% is given to every pen sold at Shop V. At Shop W, a discount of 50% is given to the 6th pen for every 6 pens sold. How much cheaper would it be if Tina buys 14 pens from Shop V instead of Shop W?

	Shop V	Shop W
Price of 1 pen	75%  $24	100% $32
Every 6th pen		50% $16

Price of 1 pen from Shop V in percentage
= 100% - 25%
= 75%

Price of 1 pen from Shop V at 25% discount
= 75% x 32
= ⁷⁵₁₀₀ x 32 
= $24

Cost of 14 pens from Shop V
= 14 x 24
= $336

Price of the 6th pen from Shop W in percentage
= 100% - 50%
= 50%

Cost of 6th pen at Shop W
= 50% x 32
= ⁵⁰₁₀₀ x 32 
= $16

Cost of 1 set of 6 pens at Shop W
= 32 x 5 + 16
= $176

Number of sets of 6 for pens at Shop W
= 14 ÷ 6
= 2 r 2

Cost of 2 sets of 6 pens at Shop W
= 2 x 176
= $352

Cost of 2 pens at Shop W
= 2 x 16
= $32

Cost of 14 pens at Shop W
= 352 + 32
= $384

Amount cheaper if Tina buys 14 pens from Shop V instead of Shop W
= 384 - 336
= $48

Answer(s): $48