For every good skirt that Sean sold, Sean earned $22. He sold defective skirts at a discount, which would cause him to lose $2 per defective skirt. In October, for every 20 skirts sold, 3 were defective. Sean earned $3680 from the skirts sold.
- How many less skirts sold were defective than good?
- How much less money did he earn because of the defective skirts?
|
Good |
Defective |
Total |
Number |
17 u |
3 u |
|
Value |
+ 22 |
- 2 |
|
Total Value |
374 u |
- 6 u |
$3680 |
(a)
Amount that Sean earned
= 374 u - 6 u
= 368 u
368 u = 3680
1 u = 3680 ÷ 368 = 10
Number of less skirts sold that were defective than good
= 17 u - 3 u
= 14 u
= 14 x 10
= 140
(b)
Number of defective skirts
= 3 u
= 3 x 10
= 30
Less amount earned for one defective jacket
= 22 + 2
= $24
Less amount earned because of all the defective skirts
= 30 x 24
= $720
Answer(s): (a) 140; (b) $720