During her shopping trip, Jade bought three different types of pens, H, J and K in the ratio of 5 : 2 : 9. She decided to sell them at the prices listed as shown.
Pen H : $1.70
Pen J : $0.80
Pen K : $0.50
Given that Jade bought a total 576 pens, how much did Jade collect from the sale of all the pens?
|
Pen H |
Pen J |
Pen K |
Total |
Ratio of pen |
5 u |
2 u |
9 u |
16 u |
Value of each pen |
$1.70 |
$0.80 |
$0.50 |
|
16 u = 576
1 u = 576 ÷ 16 = 36
Number of Pen H
= 5 x 36
= 180
Number of Pen J
= 2 x 36
= 72
Number of Pen K
= 9 x 36
= 324
Total revenue
= 180 x 1.70 + 72 x 0.80 + 324 x 0.50
= 306.00 + 57.60 + 162.00
= $525.60
Answer(s): $525.60