PSLEA shop sold three brands of markers: Brand D, Brand E, and Brand F. The bar graph shows the number of markers sold for each brand in one day.
- How many markers were sold altogether?
- The shop collected $715 from selling the markers. The prices of Brand D, Brand E, and Brand F markers were in the ratio 1 : 1 : 1. How much money was collected from selling Brand E markers?
(a)
Number of Brand D markers sold = 66
Number of Brand E markers sold = 56
Number of Brand F markers sold = 21
Total number of markers sold
= 66 + 56 + 21
= 143
(b)
|
Brand D |
Brand E |
Brand F |
Number |
66 |
56 |
21 |
Price |
1 u |
1 u |
1 u |
Total value |
66 u |
56 u |
21 u |
Total amount of money collected
= 66 u + 56 u + 21 u
= 143 u
143 u = 715
1 u = 715 ÷ 143 = 5
Amount collected from selling Brand E markers
= 56 u
= 56 x 5
= $280
Answer(s): (a) 143; (b) $280