During her shopping trip, Emily bought three different types of pens, B, C and D in the ratio of 6 : 3 : 7. She decided to sell them at the prices listed as shown.
Pen B : $2.10
Pen C : $0.95
Pen D : $0.60
Given that Emily bought a total 544 pens, how much did Emily collect from the sale of all the pens?
|
Pen B |
Pen C |
Pen D |
Total |
Ratio of pen |
6 u |
3 u |
7 u |
16 u |
Value of each pen |
$2.10 |
$0.95 |
$0.60 |
|
16 u = 544
1 u = 544 ÷ 16 = 34
Number of Pen B
= 6 x 34
= 204
Number of Pen C
= 3 x 34
= 102
Number of Pen D
= 7 x 34
= 238
Total revenue
= 204 x 2.10 + 102 x 0.95 + 238 x 0.60
= 428.40 + 96.90 + 142.80
= $668.10
Answer(s): $668.10