During her shopping trip, Zara bought three different types of pencils, E, F and G in the ratio of 5 : 3 : 9. She decided to sell them at the prices listed as shown.
Pencil E : $2.15
Pencil F : $10
Pencil G : $0.40
Given that Zara bought a total 544 pencils, how much did Zara collect from the sale of all the pencils?
|
Pencil E |
Pencil F |
Pencil G |
Total |
Ratio of pencil |
5 u |
3 u |
9 u |
17 u |
Value of each pencil |
$2.15 |
$10 |
$0.40 |
|
17 u = 544
1 u = 544 ÷ 17 = 32
Number of Pencil E
= 5 x 32
= 160
Number of Pencil F
= 3 x 32
= 96
Number of Pencil G
= 9 x 32
= 288
Total revenue
= 160 x 2.15 + 96 x 10 + 288 x 0.40
= 344.00 + 960.00 + 115.20
= $1419.20
Answer(s): $1419.20