During her shopping trip, Olivia bought three different types of pens, G, H and J in the ratio of 6 : 2 : 9. She decided to sell them at the prices listed as shown.
Pen G : $1.20
Pen H : $0.80
Pen J : $0.30
Given that Olivia bought a total 578 pens, how much did Olivia collect from the sale of all the pens?
|
Pen G |
Pen H |
Pen J |
Total |
Ratio of pen |
6 u |
2 u |
9 u |
17 u |
Value of each pen |
$1.20 |
$0.80 |
$0.30 |
|
17 u = 578
1 u = 578 ÷ 17 = 34
Number of Pen G
= 6 x 34
= 204
Number of Pen H
= 2 x 34
= 68
Number of Pen J
= 9 x 34
= 306
Total revenue
= 204 x 1.20 + 68 x 0.80 + 306 x 0.30
= 244.80 + 54.40 + 91.80
= $391.00
Answer(s): $391.00