During her shopping trip, Vanessa bought three different types of pencils, B, C and D in the ratio of 4 : 3 : 7. She decided to sell them at the prices listed as shown.
Pencil B : $1.60
Pencil C : $0.80
Pencil D : $0.40
Given that Vanessa bought a total 434 pencils, how much did Vanessa collect from the sale of all the pencils?
|
Pencil B |
Pencil C |
Pencil D |
Total |
Ratio of pencil |
4 u |
3 u |
7 u |
14 u |
Value of each pencil |
$1.60 |
$0.80 |
$0.40 |
|
14 u = 434
1 u = 434 ÷ 14 = 31
Number of Pencil B
= 4 x 31
= 124
Number of Pencil C
= 3 x 31
= 93
Number of Pencil D
= 7 x 31
= 217
Total revenue
= 124 x 1.60 + 93 x 0.80 + 217 x 0.40
= 198.40 + 74.40 + 86.80
= $359.60
Answer(s): $359.60