Tammy sold $1120 worth of blouses and vests. She earned $380 less on the vests than the blouses. Each vest is sold for $7 more than each blouse. The number of vests sold was ²₅ of the number of blouses sold.

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

(a)
Amount that Tammy earned from the sales of the blouses
= (1120 + 380) ÷ 2
= 1500 ÷ 2
= $750 

(b)
Amount that Tammy earned from the sales of the vests
= 750 - 380
= $370

Number of sets of vests sold = 2  
Number of sets of blouses sold = 5

Cost of 1 set of vests sold
= 370 ÷ 2
= $185

Cost of 1 set of blouses sold
= 750 ÷ 5
= $150

Amount that 1 set of vests was more than 1 set of blouses 
= 185 - 150
= $35

Number of items in 1 set
= 35 ÷ 7
= 5

Number of vests sold
= 2 x 5
= 10

Answer(s): (a) $750 ; (b) 10