During her shopping trip, Anna bought three different types of pens, T, U and V in the ratio of 4 : 2 : 9. She decided to sell them at the prices listed as shown.
Pen T : $1.20
Pen U : $0.70
Pen V : $0.40
Given that Anna bought a total 435 pens, how much did Anna collect from the sale of all the pens?
|
Pen T |
Pen U |
Pen V |
Total |
Ratio of pen |
4 u |
2 u |
9 u |
15 u |
Value of each pen |
$1.20 |
$0.70 |
$0.40 |
|
15 u = 435
1 u = 435 ÷ 15 = 29
Number of Pen T
= 4 x 29
= 116
Number of Pen U
= 2 x 29
= 58
Number of Pen V
= 9 x 29
= 261
Total revenue
= 116 x 1.20 + 58 x 0.70 + 261 x 0.40
= 139.20 + 40.60 + 104.40
= $284.20
Answer(s): $284.20