During her shopping trip, Linda bought three different types of pencils, N, P and Q in the ratio of 4 : 2 : 8. She decided to sell them at the prices listed as shown.
Pencil N : $2.90
Pencil P : $0.70
Pencil Q : $0.40
Given that Linda bought a total 588 pencils, how much did Linda collect from the sale of all the pencils?
|
Pencil N |
Pencil P |
Pencil Q |
Total |
Ratio of pencil |
4 u |
2 u |
8 u |
14 u |
Value of each pencil |
$2.90 |
$0.70 |
$0.40 |
|
14 u = 588
1 u = 588 ÷ 14 = 42
Number of Pencil N
= 4 x 42
= 168
Number of Pencil P
= 2 x 42
= 84
Number of Pencil Q
= 8 x 42
= 336
Total revenue
= 168 x 2.90 + 84 x 0.70 + 336 x 0.40
= 487.20 + 58.80 + 134.40
= $680.40
Answer(s): $680.40