For every good windbreaker that Liam sold, Liam earned $16. He sold defective windbreakers at a discount, which would cause him to lose $5 per defective windbreaker. In July, for every 24 windbreakers sold, 9 were defective. Liam earned $1170 from the windbreakers sold.

1. How many more windbreakers sold were good than defective?
2. How much less money did he earn because of the defective windbreakers?

	Good	Defective	Total
Number	15 u	9 u
Value	+ 16	- 5
Total Value	240 u	- 45 u	$1170

(a)
Amount that Liam earned 
= 240 u - 45 u
= 195 u

195 u = 1170

1 u = 1170 ÷ 195 = 6

Number of more windbreakers sold that were good than defective
= 15 u - 9 u
= 6 u
= 6 x 6
= 36

(b)
Number of defective windbreakers
= 9 u
= 9 x 6
= 54

Less amount earned for one defective jacket
= 16 + 5
= $21

Less amount earned because of all the defective windbreakers
= 54 x 21
= $1134

Answer(s): (a) 36; (b) $1134