PSLEA shop sold three brands of pens: Brand J, Brand K, and Brand L. The bar graph shows the number of pens sold for each brand in one day.
- How many pens were sold altogether?
- The shop collected $2220 from selling the pens. The prices of Brand J, Brand K, and Brand L pens were in the ratio 4 : 2 : 7. How much money was collected from selling Brand K pens?
(a)
Number of Brand J pens sold = 45
Number of Brand K pens sold = 69
Number of Brand L pens sold = 18
Total number of pens sold
= 45 + 69 + 18
= 132
(b)
|
Brand J |
Brand K |
Brand L |
Number |
45 |
69 |
18 |
Price |
4 u |
2 u |
7 u |
Total value |
180 u |
138 u |
126 u |
Total amount of money collected
= 180 u + 138 u + 126 u
= 444 u
444 u = 2220
1 u = 2220 ÷ 444 = 5
Amount collected from selling Brand K pens
= 138 u
= 138 x 5
= $690
Answer(s): (a) 132; (b) $690