During her shopping trip, Zara bought three different types of crayons, H, J and K in the ratio of 6 : 2 : 9. She decided to sell them at the prices listed as shown.
Crayon H : $1.70
Crayon J : $0.90
Crayon K : $0.40
Given that Zara bought a total 493 crayons, how much did Zara collect from the sale of all the crayons?
|
Crayon H |
Crayon J |
Crayon K |
Total |
Ratio of crayon |
6 u |
2 u |
9 u |
17 u |
Value of each crayon |
$1.70 |
$0.90 |
$0.40 |
|
17 u = 493
1 u = 493 ÷ 17 = 29
Number of Crayon H
= 6 x 29
= 174
Number of Crayon J
= 2 x 29
= 58
Number of Crayon K
= 9 x 29
= 261
Total revenue
= 174 x 1.70 + 58 x 0.90 + 261 x 0.40
= 295.80 + 52.20 + 104.40
= $452.40
Answer(s): $452.40