During her shopping trip, Julie bought three different types of crayons, U, V and W in the ratio of 5 : 3 : 7. She decided to sell them at the prices listed as shown.
Crayon U : $2.50
Crayon V : $0.80
Crayon W : $0.30
Given that Julie bought a total 495 crayons, how much did Julie collect from the sale of all the crayons?
|
Crayon U |
Crayon V |
Crayon W |
Total |
Ratio of crayon |
5 u |
3 u |
7 u |
15 u |
Value of each crayon |
$2.50 |
$0.80 |
$0.30 |
|
15 u = 495
1 u = 495 ÷ 15 = 33
Number of Crayon U
= 5 x 33
= 165
Number of Crayon V
= 3 x 33
= 99
Number of Crayon W
= 7 x 33
= 231
Total revenue
= 165 x 2.50 + 99 x 0.80 + 231 x 0.30
= 412.50 + 79.20 + 69.30
= $561.00
Answer(s): $561.00