During her shopping trip, Olivia bought three different types of pencils, J, K and L in the ratio of 6 : 2 : 9. She decided to sell them at the prices listed as shown.
Pencil J : $1.80
Pencil K : $0.90
Pencil L : $0.50
Given that Olivia bought a total 595 pencils, how much did Olivia collect from the sale of all the pencils?
|
Pencil J |
Pencil K |
Pencil L |
Total |
Ratio of pencil |
6 u |
2 u |
9 u |
17 u |
Value of each pencil |
$1.80 |
$0.90 |
$0.50 |
|
17 u = 595
1 u = 595 ÷ 17 = 35
Number of Pencil J
= 6 x 35
= 210
Number of Pencil K
= 2 x 35
= 70
Number of Pencil L
= 9 x 35
= 315
Total revenue
= 210 x 1.80 + 70 x 0.90 + 315 x 0.50
= 378.00 + 63.00 + 157.50
= $598.50
Answer(s): $598.50