Jade paid a total of $168 for a sweater, a pair of socks and a pair of ballet shoes. She spent ⁴₇ of her money on the pair of socks. The pair of ballet shoes cost 7 times as much as the sweater. How much more did she pay for the pair of ballet shoes than the sweater?
Amount that Jade paid for the pair of socks
= ⁴₇ x 168 
= $96

Amount that Jade left after buying the socks
= 168 - 96
= $72

Amount that Jade paid for the sweater = 1 u
Amount that Jade paid for the ballet shoes = 7 u

Total amount spent on the sweater and the pair of ballet shoes
= 1 u + 7 u
= 8 u

8 u = 72

1 u = 72 ÷ 8 = 9

Amount that Jade paid more for the pair of ballet shoes than the sweater
= 7 u - 1 u
= 6 u
= 6 x 9
= $54

Answer(s): $54