Barbara sold $1340 worth of skirts and coats. She earned $620 less on the coats than the skirts. Each coat is sold for $8 more than each skirt. The number of coats sold was ²₇ of the number of skirts sold.

1. How much did Barbara earn from the sales of the skirts?
2. How many coats were sold?

(a)
Amount that Barbara earned from the sales of the skirts
= (1340 + 620) ÷ 2
= 1960 ÷ 2
= $980 

(b)
Amount that Barbara earned from the sales of the coats
= 980 - 620
= $360

Number of sets of coats sold = 2  
Number of sets of skirts sold = 7

Cost of 1 set of coats sold
= 360 ÷ 2
= $180

Cost of 1 set of skirts sold
= 980 ÷ 7
= $140

Amount that 1 set of coats was more than 1 set of skirts 
= 180 - 140
= $40

Number of items in 1 set
= 40 ÷ 8
= 5

Number of coats sold
= 2 x 5
= 10

Answer(s): (a) $980 ; (b) 10