For every good sweater that Peter sold, Peter earned $17. He sold defective sweaters at a discount, which would cause him to lose $3 per defective sweater. In November, for every 30 sweaters sold, 10 were defective. Peter earned $1860 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 |
20 u |
10 u |
|
Value |
+ 17 |
- 3 |
|
Total Value |
340 u |
- 30 u |
$1860 |
(a)
Amount that Peter earned
= 340 u - 30 u
= 310 u
310 u = 1860
1 u = 1860 ÷ 310 = 6
Number of more sweaters sold that were good than defective
= 20 u - 10 u
= 10 u
= 10 x 6
= 60
(b)
Number of defective sweaters
= 10 u
= 10 x 6
= 60
Less amount earned for one defective jacket
= 17 + 3
= $20
Less amount earned because of all the defective sweaters
= 60 x 20
= $1200
Answer(s): (a) 60; (b) $1200