During her shopping trip, Tammy bought three different types of markers, L, M and N in the ratio of 4 : 2 : 7. She decided to sell them at the prices listed as shown.
Marker L : $2.80
Marker M : $0.70
Marker N : $0.40
Given that Tammy bought a total 429 markers, how much did Tammy collect from the sale of all the markers?
|
Marker L |
Marker M |
Marker N |
Total |
Ratio of marker |
4 u |
2 u |
7 u |
13 u |
Value of each marker |
$2.80 |
$0.70 |
$0.40 |
|
13 u = 429
1 u = 429 ÷ 13 = 33
Number of Marker L
= 4 x 33
= 132
Number of Marker M
= 2 x 33
= 66
Number of Marker N
= 7 x 33
= 231
Total revenue
= 132 x 2.80 + 66 x 0.70 + 231 x 0.40
= 369.60 + 46.20 + 92.40
= $508.20
Answer(s): $508.20