Jeremy buys a jumpsuit, a sweater and a windbreaker. The average cost of these items is $96. The cost of the windbreaker is four times the total cost of the jumpsuit and the sweater. If the jumpsuit costs $14, find the difference in cost between the sweater and the windbreaker.
Total cost of the 3 items
= 3 x 96
= $288

Total cost of the jumpsuit and the sweater = 1 u
Cost of the windbreaker = 4 u

Total cost of the 3 items 
= 1 u + 4 u
= 5 u

5 u = 288 

1 u = 288 ÷ 5 = 57.60

Total cost of the jumpsuit and the sweater = $57.60

Cost of the sweater 
= 57.60 - 14
= $43.60

Cost of the windbreaker
= 4 u
= 4 x 57.60
= $230.40

Difference in cost between the sweater and the windbreaker
= 230.40 - 43.60
= $186.80

Answer(s): $186.80