For every good vest that David sold, David earned $24. He sold defective vests at a discount, which would cause him to lose $5 per defective vest. In July, for every 22 vests sold, 3 were defective. David earned $2646 from the vests sold.
- How many more vests sold were good than defective?
- How much less money did he earn because of the defective vests?
|
Good |
Defective |
Total |
Number |
19 u |
3 u |
|
Value |
+ 24 |
- 5 |
|
Total Value |
456 u |
- 15 u |
$2646 |
(a)
Amount that David earned
= 456 u - 15 u
= 441 u
441 u = 2646
1 u = 2646 ÷ 441 = 6
Number of more vests sold that were good than defective
= 19 u - 3 u
= 16 u
= 16 x 6
= 96
(b)
Number of defective vests
= 3 u
= 3 x 6
= 18
Less amount earned for one defective jacket
= 24 + 5
= $29
Less amount earned because of all the defective vests
= 18 x 29
= $522
Answer(s): (a) 96; (b) $522