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 $1240 from selling the pens. The prices of Brand J, Brand K, and Brand L pens were in the ratio 3 : 3 : 1. How much money was collected from selling Brand K pens?
(a)
Number of Brand J pens sold = 33
Number of Brand K pens sold = 53
Number of Brand L pens sold = 52
Total number of pens sold
= 33 + 53 + 52
= 138
(b)
|
Brand J |
Brand K |
Brand L |
Number |
33 |
53 |
52 |
Price |
3 u |
3 u |
1 u |
Total value |
99 u |
159 u |
52 u |
Total amount of money collected
= 99 u + 159 u + 52 u
= 310 u
310 u = 1240
1 u = 1240 ÷ 310 = 4
Amount collected from selling Brand K pens
= 159 u
= 159 x 4
= $636
Answer(s): (a) 138; (b) $636