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 $922 from selling the pens. The prices of Brand X, Brand Y, and Brand Z pens were in the ratio 3 : 5 : 4. How much money was collected from selling Brand Y pens?
(a)
Number of Brand X pens sold = 38
Number of Brand Y pens sold = 39
Number of Brand Z pens sold = 38
Total number of pens sold
= 38 + 39 + 38
= 115
(b)
|
Brand X |
Brand Y |
Brand Z |
Number |
38 |
39 |
38 |
Price |
3 u |
5 u |
4 u |
Total value |
114 u |
195 u |
152 u |
Total amount of money collected
= 114 u + 195 u + 152 u
= 461 u
461 u = 922
1 u = 922 ÷ 461 = 2
Amount collected from selling Brand Y pens
= 195 u
= 195 x 2
= $390
Answer(s): (a) 115; (b) $390