PSLEA shop sold three brands of files: Brand Z, Brand A, and Brand B. The bar graph shows the number of files sold for each brand in one day.
- How many files were sold altogether?
- The shop collected $774 from selling the files. The prices of Brand Z, Brand A, and Brand B files were in the ratio 3 : 5 : 4. How much money was collected from selling Brand A files?
(a)
Number of Brand Z files sold = 46
Number of Brand A files sold = 33
Number of Brand B files sold = 21
Total number of files sold
= 46 + 33 + 21
= 100
(b)
|
Brand Z |
Brand A |
Brand B |
Number |
46 |
33 |
21 |
Price |
3 u |
5 u |
4 u |
Total value |
138 u |
165 u |
84 u |
Total amount of money collected
= 138 u + 165 u + 84 u
= 387 u
387 u = 774
1 u = 774 ÷ 387 = 2
Amount collected from selling Brand A files
= 165 u
= 165 x 2
= $330
Answer(s): (a) 100; (b) $330