For every good sweater that Zeph sold, Zeph earned $16. He sold defective sweaters at a discount, which would cause him to lose $4 per defective sweater. In September, for every 26 sweaters sold, 7 were defective. Zeph earned $1380 from the sweaters sold.
- How many more sweaters sold were good than defective?
- How much less money did he earn because of the defective sweaters?
|
Good |
Defective |
Total |
Number |
19 u |
7 u |
|
Value |
+ 16 |
- 4 |
|
Total Value |
304 u |
- 28 u |
$1380 |
(a)
Amount that Zeph earned
= 304 u - 28 u
= 276 u
276 u = 1380
1 u = 1380 ÷ 276 = 5
Number of more sweaters sold that were good than defective
= 19 u - 7 u
= 12 u
= 12 x 5
= 60
(b)
Number of defective sweaters
= 7 u
= 7 x 5
= 35
Less amount earned for one defective jacket
= 16 + 4
= $20
Less amount earned because of all the defective sweaters
= 35 x 20
= $700
Answer(s): (a) 60; (b) $700