PSLEA shop sold three brands of pens: Brand X, Brand Y, and Brand Z. The bar graph shows the number of pens sold for each brand in one day.
- How many pens were sold altogether?
- The shop collected $1665 from selling the pens. The prices of Brand X, Brand Y, and Brand Z pens were in the ratio 1 : 3 : 2. How much money was collected from selling Brand Y pens?
(a)
Number of Brand X pens sold = 68
Number of Brand Y pens sold = 65
Number of Brand Z pens sold = 35
Total number of pens sold
= 68 + 65 + 35
= 168
(b)
|
Brand X |
Brand Y |
Brand Z |
Number |
68 |
65 |
35 |
Price |
1 u |
3 u |
2 u |
Total value |
68 u |
195 u |
70 u |
Total amount of money collected
= 68 u + 195 u + 70 u
= 333 u
333 u = 1665
1 u = 1665 ÷ 333 = 5
Amount collected from selling Brand Y pens
= 195 u
= 195 x 5
= $975
Answer(s): (a) 168; (b) $975