During her shopping trip, Zara bought three different types of pens, R, S and T in the ratio of 5 : 3 : 8. She decided to sell them at the prices listed as shown.
Pen R : $1.10
Pen S : $0.80
Pen T : $0.50
Given that Zara bought a total 416 pens, how much did Zara collect from the sale of all the pens?
|
Pen R |
Pen S |
Pen T |
Total |
Ratio of pen |
5 u |
3 u |
8 u |
16 u |
Value of each pen |
$1.10 |
$0.80 |
$0.50 |
|
16 u = 416
1 u = 416 ÷ 16 = 26
Number of Pen R
= 5 x 26
= 130
Number of Pen S
= 3 x 26
= 78
Number of Pen T
= 8 x 26
= 208
Total revenue
= 130 x 1.10 + 78 x 0.80 + 208 x 0.50
= 143.00 + 62.40 + 104.00
= $309.40
Answer(s): $309.40