PSLEA shop sold three brands of notebooks: Brand D, Brand E, and Brand F. The bar graph shows the number of notebooks sold for each brand in one day.
- How many notebooks were sold altogether?
- The shop collected $4175 from selling the notebooks. The prices of Brand D, Brand E, and Brand F notebooks were in the ratio 3 : 7 : 4. How much money was collected from selling Brand E notebooks?
(a)
Number of Brand D notebooks sold = 68
Number of Brand E notebooks sold = 69
Number of Brand F notebooks sold = 37
Total number of notebooks sold
= 68 + 69 + 37
= 174
(b)
|
Brand D |
Brand E |
Brand F |
Number |
68 |
69 |
37 |
Price |
3 u |
7 u |
4 u |
Total value |
204 u |
483 u |
148 u |
Total amount of money collected
= 204 u + 483 u + 148 u
= 835 u
835 u = 4175
1 u = 4175 ÷ 835 = 5
Amount collected from selling Brand E notebooks
= 483 u
= 483 x 5
= $2415
Answer(s): (a) 174; (b) $2415