PSLEA shop sold three brands of files: Brand C, Brand D, and Brand E. The bar graph shows the number of files sold for each brand in one day.
- How many files were sold altogether?
- The shop collected $4968 from selling the files. The prices of Brand C, Brand D, and Brand E files were in the ratio 2 : 7 : 6. How much money was collected from selling Brand D files?
(a)
Number of Brand C files sold = 66
Number of Brand D files sold = 57
Number of Brand E files sold = 15
Total number of files sold
= 66 + 57 + 15
= 138
(b)
|
Brand C |
Brand D |
Brand E |
Number |
66 |
57 |
15 |
Price |
2 u |
7 u |
6 u |
Total value |
132 u |
399 u |
90 u |
Total amount of money collected
= 132 u + 399 u + 90 u
= 621 u
621 u = 4968
1 u = 4968 ÷ 621 = 8
Amount collected from selling Brand D files
= 399 u
= 399 x 8
= $3192
Answer(s): (a) 138; (b) $3192