Gwen paid a total of $224 for a shirt, a pair of socks and a pair of canvas shoes. She spent ²₇ of her money on the pair of socks. The pair of canvas shoes cost 9 times as much as the shirt. How much more did she pay for the pair of canvas shoes than the shirt?
Amount that Gwen paid for the pair of socks
= ²₇ x 224 
= $64

Amount that Gwen left after buying the socks
= 224 - 64
= $160

Amount that Gwen paid for the shirt = 1 u
Amount that Gwen paid for the canvas shoes = 9 u

Total amount spent on the shirt and the pair of canvas shoes
= 1 u + 9 u
= 10 u

10 u = 160

1 u = 160 ÷ 10 = 16

Amount that Gwen paid more for the pair of canvas shoes than the shirt
= 9 u - 1 u
= 8 u
= 8 x 16
= $128

Answer(s): $128