During her shopping trip, Xandra bought three different types of pens, N, P and Q in the ratio of 4 : 2 : 9. She decided to sell them at the prices listed as shown.
Pen N : $2.50
Pen P : $0.80
Pen Q : $0.60
Given that Xandra bought a total 525 pens, how much did Xandra collect from the sale of all the pens?
|
Pen N |
Pen P |
Pen Q |
Total |
Ratio of pen |
4 u |
2 u |
9 u |
15 u |
Value of each pen |
$2.50 |
$0.80 |
$0.60 |
|
15 u = 525
1 u = 525 ÷ 15 = 35
Number of Pen N
= 4 x 35
= 140
Number of Pen P
= 2 x 35
= 70
Number of Pen Q
= 9 x 35
= 315
Total revenue
= 140 x 2.50 + 70 x 0.80 + 315 x 0.60
= 350.00 + 56.00 + 189.00
= $595.00
Answer(s): $595.00