Julie sold $3490 worth of jumpsuits and skirts. She earned $290 less on the skirts than the jumpsuits. Each skirt is sold for $5 more than each jumpsuit. The number of skirts sold was ⁵₇ of the number of jumpsuits sold.

1. How much did Julie earn from the sales of the jumpsuits?
2. How many jumpsuits were sold?

(a)
Amount that Julie earned from the sales of the jumpsuits
= (3490 + 290) ÷ 2
= 3780 ÷ 2
= $1890 

(b)
Amount that Julie earned from the sales of the skirts
= 1890 - 290
= $1600

Number of sets of skirts sold = 5  
Number of sets of jumpsuits sold = 7

Cost of 1 set of skirts sold
= 1600 ÷ 5
= $320

Cost of 1 set of jumpsuits sold
= 1890 ÷ 7
= $270

Amount that 1 set of skirts was more than 1 set of jumpsuits 
= 320 - 270
= $50

Number of items in 1 set
= 50 ÷ 5
= 10

Number of jumpsuits sold
= 7 x 10
= 70

Answer(s): (a) $1890 ; (b) 70