PSLEA shop sold three brands of pens: Brand Z, Brand A, and Brand B. The bar graph shows the number of pens sold for each brand in one day.
- How many pens were sold altogether?
- The shop collected $4515 from selling the pens. The prices of Brand Z, Brand A, and Brand B pens were in the ratio 2 : 1 : 7. How much money was collected from selling Brand A pens?
(a)
Number of Brand Z pens sold = 69
Number of Brand A pens sold = 66
Number of Brand B pens sold = 63
Total number of pens sold
= 69 + 66 + 63
= 198
(b)
|
Brand Z |
Brand A |
Brand B |
Number |
69 |
66 |
63 |
Price |
2 u |
1 u |
7 u |
Total value |
138 u |
66 u |
441 u |
Total amount of money collected
= 138 u + 66 u + 441 u
= 645 u
645 u = 4515
1 u = 4515 ÷ 645 = 7
Amount collected from selling Brand A pens
= 66 u
= 66 x 7
= $462
Answer(s): (a) 198; (b) $462