During her shopping trip, Marion bought three different types of pens, C, D and E in the ratio of 4 : 3 : 8. She decided to sell them at the prices listed as shown.
Pen C : $1.15
Pen D : $0.80
Pen E : $0.50
Given that Marion bought a total 495 pens, how much did Marion collect from the sale of all the pens?
|
Pen C |
Pen D |
Pen E |
Total |
Ratio of pen |
4 u |
3 u |
8 u |
15 u |
Value of each pen |
$1.15 |
$0.80 |
$0.50 |
|
15 u = 495
1 u = 495 ÷ 15 = 33
Number of Pen C
= 4 x 33
= 132
Number of Pen D
= 3 x 33
= 99
Number of Pen E
= 8 x 33
= 264
Total revenue
= 132 x 1.15 + 99 x 0.80 + 264 x 0.50
= 151.80 + 79.20 + 132.00
= $363.00
Answer(s): $363.00