Min sold $3300 worth of vests and sweaters. She earned $1068 less on the sweaters than the vests. Each sweater is sold for $5 more than each vest. The number of sweaters sold was ³₇ of the number of vests sold.

1. How much did Min earn from the sales of the vests?
2. How many vests were sold?

(a)
Amount that Min earned from the sales of the vests
= (3300 + 1068) ÷ 2
= 4368 ÷ 2
= $2184 

(b)
Amount that Min earned from the sales of the sweaters
= 2184 - 1068
= $1116

Number of sets of sweaters sold = 3  
Number of sets of vests sold = 7

Cost of 1 set of sweaters sold
= 1116 ÷ 3
= $372

Cost of 1 set of vests sold
= 2184 ÷ 7
= $312

Amount that 1 set of sweaters was more than 1 set of vests 
= 372 - 312
= $60

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

Number of vests sold
= 7 x 12
= 84

Answer(s): (a) $2184 ; (b) 84