During her shopping trip, Diana bought three different types of crayons, Q, R and S in the ratio of 5 : 2 : 8. She decided to sell them at the prices listed as shown.
Crayon Q : $2.70
Crayon R : $0.90
Crayon S : $0.40
Given that Diana bought a total 480 crayons, how much did Diana collect from the sale of all the crayons?
|
Crayon Q |
Crayon R |
Crayon S |
Total |
Ratio of crayon |
5 u |
2 u |
8 u |
15 u |
Value of each crayon |
$2.70 |
$0.90 |
$0.40 |
|
15 u = 480
1 u = 480 ÷ 15 = 32
Number of Crayon Q
= 5 x 32
= 160
Number of Crayon R
= 2 x 32
= 64
Number of Crayon S
= 8 x 32
= 256
Total revenue
= 160 x 2.70 + 64 x 0.90 + 256 x 0.40
= 432.00 + 57.60 + 102.40
= $592.00
Answer(s): $592.00