During her shopping trip, Natalie bought three different types of crayons, B, C and D in the ratio of 4 : 2 : 7. She decided to sell them at the prices listed as shown.
Crayon B : $1.40
Crayon C : $0.90
Crayon D : $0.60
Given that Natalie bought a total 598 crayons, how much did Natalie collect from the sale of all the crayons?
|
Crayon B |
Crayon C |
Crayon D |
Total |
Ratio of crayon |
4 u |
2 u |
7 u |
13 u |
Value of each crayon |
$1.40 |
$0.90 |
$0.60 |
|
13 u = 598
1 u = 598 ÷ 13 = 46
Number of Crayon B
= 4 x 46
= 184
Number of Crayon C
= 2 x 46
= 92
Number of Crayon D
= 7 x 46
= 322
Total revenue
= 184 x 1.40 + 92 x 0.90 + 322 x 0.60
= 257.60 + 82.80 + 193.20
= $533.60
Answer(s): $533.60