During her shopping trip, Jaslyn bought three different types of markers, A, B and C in the ratio of 4 : 2 : 9. She decided to sell them at the prices listed as shown.
Marker A : $1.40
Marker B : $0.75
Marker C : $0.40
Given that Jaslyn bought a total 420 markers, how much did Jaslyn collect from the sale of all the markers?
|
Marker A |
Marker B |
Marker C |
Total |
Ratio of marker |
4 u |
2 u |
9 u |
15 u |
Value of each marker |
$1.40 |
$0.75 |
$0.40 |
|
15 u = 420
1 u = 420 ÷ 15 = 28
Number of Marker A
= 4 x 28
= 112
Number of Marker B
= 2 x 28
= 56
Number of Marker C
= 9 x 28
= 252
Total revenue
= 112 x 1.40 + 56 x 0.75 + 252 x 0.40
= 156.80 + 42.00 + 100.80
= $299.60
Answer(s): $299.60