For every good vest that Mark sold, Mark earned $23. He sold defective vests at a discount, which would cause him to lose $4 per defective vest. In June, for every 23 vests sold, 5 were defective. Mark earned $3152 from the vests sold.
- How many less vests sold were defective than good?
- How much less money did he earn because of the defective vests?
|
Good |
Defective |
Total |
Number |
18 u |
5 u |
|
Value |
+ 23 |
- 4 |
|
Total Value |
414 u |
- 20 u |
$3152 |
(a)
Amount that Mark earned
= 414 u - 20 u
= 394 u
394 u = 3152
1 u = 3152 ÷ 394 = 8
Number of less vests sold that were defective than good
= 18 u - 5 u
= 13 u
= 13 x 8
= 104
(b)
Number of defective vests
= 5 u
= 5 x 8
= 40
Less amount earned for one defective jacket
= 23 + 4
= $27
Less amount earned because of all the defective vests
= 40 x 27
= $1080
Answer(s): (a) 104; (b) $1080