PSLEA shop sold three brands of notebooks: Brand A, Brand B, and Brand C. The bar graph shows the number of notebooks sold for each brand in one day.
- How many notebooks were sold altogether?
- The shop collected $1024 from selling the notebooks. The prices of Brand A, Brand B, and Brand C notebooks were in the ratio 6 : 4 : 3. How much money was collected from selling Brand B notebooks?
(a)
Number of Brand A notebooks sold = 40
Number of Brand B notebooks sold = 38
Number of Brand C notebooks sold = 40
Total number of notebooks sold
= 40 + 38 + 40
= 118
(b)
|
Brand A |
Brand B |
Brand C |
Number |
40 |
38 |
40 |
Price |
6 u |
4 u |
3 u |
Total value |
240 u |
152 u |
120 u |
Total amount of money collected
= 240 u + 152 u + 120 u
= 512 u
512 u = 1024
1 u = 1024 ÷ 512 = 2
Amount collected from selling Brand B notebooks
= 152 u
= 152 x 2
= $304
Answer(s): (a) 118; (b) $304