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 $2821 from selling the pens. The prices of Brand B, Brand C, and Brand D pens were in the ratio 2 : 1 : 7. How much money was collected from selling Brand C pens?
(a)
Number of Brand B pens sold = 53
Number of Brand C pens sold = 38
Number of Brand D pens sold = 37
Total number of pens sold
= 53 + 38 + 37
= 128
(b)
|
Brand B |
Brand C |
Brand D |
Number |
53 |
38 |
37 |
Price |
2 u |
1 u |
7 u |
Total value |
106 u |
38 u |
259 u |
Total amount of money collected
= 106 u + 38 u + 259 u
= 403 u
403 u = 2821
1 u = 2821 ÷ 403 = 7
Amount collected from selling Brand C pens
= 38 u
= 38 x 7
= $266
Answer(s): (a) 128; (b) $266