Gillian sold $2205 worth of skirts and shirts. She earned $189 less on the shirts than the skirts. Each shirt is sold for $9 more than each skirt. The number of shirts sold was ⁴₇ of the number of skirts sold.

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

(a)
Amount that Gillian earned from the sales of the skirts
= (2205 + 189) ÷ 2
= 2394 ÷ 2
= $1197 

(b)
Amount that Gillian earned from the sales of the shirts
= 1197 - 189
= $1008

Number of sets of shirts sold = 4  
Number of sets of skirts sold = 7

Cost of 1 set of shirts sold
= 1008 ÷ 4
= $252

Cost of 1 set of skirts sold
= 1197 ÷ 7
= $171

Amount that 1 set of shirts was more than 1 set of skirts 
= 252 - 171
= $81

Number of items in 1 set
= 81 ÷ 9
= 9

Number of shirts sold
= 4 x 9
= 36

Answer(s): (a) $1197 ; (b) 36