During her shopping trip, Shannon bought three different types of pencils, V, W and X in the ratio of 5 : 2 : 7. She decided to sell them at the prices listed as shown.
Pencil V : $1.15
Pencil W : $0.90
Pencil X : $0.40
Given that Shannon bought a total 448 pencils, how much did Shannon collect from the sale of all the pencils?
|
Pencil V |
Pencil W |
Pencil X |
Total |
Ratio of pencil |
5 u |
2 u |
7 u |
14 u |
Value of each pencil |
$1.15 |
$0.90 |
$0.40 |
|
14 u = 448
1 u = 448 ÷ 14 = 32
Number of Pencil V
= 5 x 32
= 160
Number of Pencil W
= 2 x 32
= 64
Number of Pencil X
= 7 x 32
= 224
Total revenue
= 160 x 1.15 + 64 x 0.90 + 224 x 0.40
= 184.00 + 57.60 + 89.60
= $331.20
Answer(s): $331.20