During her shopping trip, Jen bought three different types of markers, K, L and M in the ratio of 4 : 3 : 7. She decided to sell them at the prices listed as shown.
Marker K : $2.80
Marker L : $0.90
Marker M : $0.50
Given that Jen bought a total 448 markers, how much did Jen collect from the sale of all the markers?
|
Marker K |
Marker L |
Marker M |
Total |
Ratio of marker |
4 u |
3 u |
7 u |
14 u |
Value of each marker |
$2.80 |
$0.90 |
$0.50 |
|
14 u = 448
1 u = 448 ÷ 14 = 32
Number of Marker K
= 4 x 32
= 128
Number of Marker L
= 3 x 32
= 96
Number of Marker M
= 7 x 32
= 224
Total revenue
= 128 x 2.80 + 96 x 0.90 + 224 x 0.50
= 358.40 + 86.40 + 112.00
= $556.80
Answer(s): $556.80