PSLEA shop sold three brands of notebooks: Brand Z, Brand A, and Brand B. The bar graph shows the number of notebooks sold for each brand in one day.
- How many notebooks were sold altogether?
- The shop collected $1342 from selling the notebooks. The prices of Brand Z, Brand A, and Brand B notebooks were in the ratio 7 : 4 : 5. How much money was collected from selling Brand A notebooks?
(a)
Number of Brand Z notebooks sold = 61
Number of Brand A notebooks sold = 31
Number of Brand B notebooks sold = 24
Total number of notebooks sold
= 61 + 31 + 24
= 116
(b)
|
Brand Z |
Brand A |
Brand B |
Number |
61 |
31 |
24 |
Price |
7 u |
4 u |
5 u |
Total value |
427 u |
124 u |
120 u |
Total amount of money collected
= 427 u + 124 u + 120 u
= 671 u
671 u = 1342
1 u = 1342 ÷ 671 = 2
Amount collected from selling Brand A notebooks
= 124 u
= 124 x 2
= $248
Answer(s): (a) 116; (b) $248