Gem sold $760 worth of shirts and jumpsuits. She earned $136 less on the jumpsuits than the shirts. Each jumpsuit is sold for $10 more than each shirt. The number of jumpsuits sold was ³₇ of the number of shirts sold.

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

(a)
Amount that Gem earned from the sales of the shirts
= (760 + 136) ÷ 2
= 896 ÷ 2
= $448 

(b)
Amount that Gem earned from the sales of the jumpsuits
= 448 - 136
= $312

Number of sets of jumpsuits sold = 3  
Number of sets of shirts sold = 7

Cost of 1 set of jumpsuits sold
= 312 ÷ 3
= $104

Cost of 1 set of shirts sold
= 448 ÷ 7
= $64

Amount that 1 set of jumpsuits was more than 1 set of shirts 
= 104 - 64
= $40

Number of items in 1 set
= 40 ÷ 10
= 4

Number of jumpsuits sold
= 3 x 4
= 12

Answer(s): (a) $448 ; (b) 12