PSLEA shop sold three brands of pens: Brand B, Brand C, and Brand D. The bar graph shows the number of pens sold for each brand in one day.
- How many pens were sold altogether?
- The shop collected $4026 from selling the pens. The prices of Brand B, Brand C, and Brand D pens were in the ratio 3 : 7 : 5. How much money was collected from selling Brand C pens?
(a)
Number of Brand B pens sold = 57
Number of Brand C pens sold = 60
Number of Brand D pens sold = 16
Total number of pens sold
= 57 + 60 + 16
= 133
(b)
|
Brand B |
Brand C |
Brand D |
Number |
57 |
60 |
16 |
Price |
3 u |
7 u |
5 u |
Total value |
171 u |
420 u |
80 u |
Total amount of money collected
= 171 u + 420 u + 80 u
= 671 u
671 u = 4026
1 u = 4026 ÷ 671 = 6
Amount collected from selling Brand C pens
= 420 u
= 420 x 6
= $2520
Answer(s): (a) 133; (b) $2520