Winnie sold $3036 worth of sweaters and windbreakers. She earned $1500 less on the windbreakers than the sweaters. Each windbreaker is sold for $5 more than each sweater. The number of windbreakers sold was ²₇ of the number of sweaters sold.

1. How much did Winnie earn from the sales of the sweaters?
2. How many sweaters were sold?

(a)
Amount that Winnie earned from the sales of the sweaters
= (3036 + 1500) ÷ 2
= 4536 ÷ 2
= $2268 

(b)
Amount that Winnie earned from the sales of the windbreakers
= 2268 - 1500
= $768

Number of sets of windbreakers sold = 2  
Number of sets of sweaters sold = 7

Cost of 1 set of windbreakers sold
= 768 ÷ 2
= $384

Cost of 1 set of sweaters sold
= 2268 ÷ 7
= $324

Amount that 1 set of windbreakers was more than 1 set of sweaters 
= 384 - 324
= $60

Number of items in 1 set
= 60 ÷ 5
= 12

Number of sweaters sold
= 7 x 12
= 84

Answer(s): (a) $2268 ; (b) 84