During her shopping trip, Nicole 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 : $1.50
Pen J : $0.70
Pen K : $0.50
Given that Nicole bought a total 400 pens, how much did Nicole 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 |
$1.50 |
$0.70 |
$0.50 |
|
16 u = 400
1 u = 400 ÷ 16 = 25
Number of Pen H
= 5 x 25
= 125
Number of Pen J
= 2 x 25
= 50
Number of Pen K
= 9 x 25
= 225
Total revenue
= 125 x 1.50 + 50 x 0.70 + 225 x 0.50
= 187.50 + 35.00 + 112.50
= $335.00
Answer(s): $335.00