During her shopping trip, Yoko bought three different types of markers, M, N and P in the ratio of 4 : 3 : 9. She decided to sell them at the prices listed as shown.
Marker M : $1.30
Marker N : $0.70
Marker P : $0.50
Given that Yoko bought a total 528 markers, how much did Yoko collect from the sale of all the markers?
|
Marker M |
Marker N |
Marker P |
Total |
Ratio of marker |
4 u |
3 u |
9 u |
16 u |
Value of each marker |
$1.30 |
$0.70 |
$0.50 |
|
16 u = 528
1 u = 528 ÷ 16 = 33
Number of Marker M
= 4 x 33
= 132
Number of Marker N
= 3 x 33
= 99
Number of Marker P
= 9 x 33
= 297
Total revenue
= 132 x 1.30 + 99 x 0.70 + 297 x 0.50
= 171.60 + 69.30 + 148.50
= $389.40
Answer(s): $389.40