During her shopping trip, Penelope bought three different types of crayons, T, U and V in the ratio of 5 : 3 : 9. She decided to sell them at the prices listed as shown.
Crayon T : $1.30
Crayon U : $0.90
Crayon V : $0.30
Given that Penelope bought a total 493 crayons, how much did Penelope collect from the sale of all the crayons?
|
Crayon T |
Crayon U |
Crayon V |
Total |
Ratio of crayon |
5 u |
3 u |
9 u |
17 u |
Value of each crayon |
$1.30 |
$0.90 |
$0.30 |
|
17 u = 493
1 u = 493 ÷ 17 = 29
Number of Crayon T
= 5 x 29
= 145
Number of Crayon U
= 3 x 29
= 87
Number of Crayon V
= 9 x 29
= 261
Total revenue
= 145 x 1.30 + 87 x 0.90 + 261 x 0.30
= 188.50 + 78.30 + 78.30
= $345.10
Answer(s): $345.10