For every good coat that Justin sold, Justin earned $25. He sold defective coats at a discount, which would cause him to lose $3 per defective coat. In March, for every 20 coats sold, 9 were defective. Justin earned $2480 from the coats sold.
- How many more coats sold were good than defective?
- How much less money did he earn because of the defective coats?
|
Good |
Defective |
Total |
Number |
11 u |
9 u |
|
Value |
+ 25 |
- 3 |
|
Total Value |
275 u |
- 27 u |
$2480 |
(a)
Amount that Justin earned
= 275 u - 27 u
= 248 u
248 u = 2480
1 u = 2480 ÷ 248 = 10
Number of more coats sold that were good than defective
= 11 u - 9 u
= 2 u
= 2 x 10
= 20
(b)
Number of defective coats
= 9 u
= 9 x 10
= 90
Less amount earned for one defective jacket
= 25 + 3
= $28
Less amount earned because of all the defective coats
= 90 x 28
= $2520
Answer(s): (a) 20; (b) $2520