During her shopping trip, Sabrina bought three different types of markers, B, C and D in the ratio of 4 : 2 : 7. She decided to sell them at the prices listed as shown.
Marker B : $2.40
Marker C : $0.70
Marker D : $0.60
Given that Sabrina bought a total 442 markers, how much did Sabrina collect from the sale of all the markers?
|
Marker B |
Marker C |
Marker D |
Total |
Ratio of marker |
4 u |
2 u |
7 u |
13 u |
Value of each marker |
$2.40 |
$0.70 |
$0.60 |
|
13 u = 442
1 u = 442 ÷ 13 = 34
Number of Marker B
= 4 x 34
= 136
Number of Marker C
= 2 x 34
= 68
Number of Marker D
= 7 x 34
= 238
Total revenue
= 136 x 2.40 + 68 x 0.70 + 238 x 0.60
= 326.40 + 47.60 + 142.80
= $516.80
Answer(s): $516.80