During her shopping trip, Eva bought three different types of pencils, N, P and Q in the ratio of 4 : 3 : 8. She decided to sell them at the prices listed as shown.
Pencil N : $1.70
Pencil P : $0.80
Pencil Q : $0.60
Given that Eva bought a total 525 pencils, how much did Eva collect from the sale of all the pencils?
|
Pencil N |
Pencil P |
Pencil Q |
Total |
Ratio of pencil |
4 u |
3 u |
8 u |
15 u |
Value of each pencil |
$1.70 |
$0.80 |
$0.60 |
|
15 u = 525
1 u = 525 ÷ 15 = 35
Number of Pencil N
= 4 x 35
= 140
Number of Pencil P
= 3 x 35
= 105
Number of Pencil Q
= 8 x 35
= 280
Total revenue
= 140 x 1.70 + 105 x 0.80 + 280 x 0.60
= 238.00 + 84.00 + 168.00
= $490.00
Answer(s): $490.00