PSLEA shop sold three brands of pens: Brand D, Brand E, and Brand F. The bar graph shows the number of pens sold for each brand in one day.
- How many pens were sold altogether?
- The shop collected $1689 from selling the pens. The prices of Brand D, Brand E, and Brand F pens were in the ratio 1 : 7 : 1. How much money was collected from selling Brand E pens?
(a)
Number of Brand D pens sold = 54
Number of Brand E pens sold = 65
Number of Brand F pens sold = 54
Total number of pens sold
= 54 + 65 + 54
= 173
(b)
|
Brand D |
Brand E |
Brand F |
Number |
54 |
65 |
54 |
Price |
1 u |
7 u |
1 u |
Total value |
54 u |
455 u |
54 u |
Total amount of money collected
= 54 u + 455 u + 54 u
= 563 u
563 u = 1689
1 u = 1689 ÷ 563 = 3
Amount collected from selling Brand E pens
= 455 u
= 455 x 3
= $1365
Answer(s): (a) 173; (b) $1365