PSLEA shop sold three brands of pens: Brand Y, Brand Z, and Brand A. The bar graph shows the number of pens sold for each brand in one day.
- How many pens were sold altogether?
- The shop collected $3549 from selling the pens. The prices of Brand Y, Brand Z, and Brand A pens were in the ratio 2 : 8 : 1. How much money was collected from selling Brand Z pens?
(a)
Number of Brand Y pens sold = 31
Number of Brand Z pens sold = 48
Number of Brand A pens sold = 61
Total number of pens sold
= 31 + 48 + 61
= 140
(b)
|
Brand Y |
Brand Z |
Brand A |
Number |
31 |
48 |
61 |
Price |
2 u |
8 u |
1 u |
Total value |
62 u |
384 u |
61 u |
Total amount of money collected
= 62 u + 384 u + 61 u
= 507 u
507 u = 3549
1 u = 3549 ÷ 507 = 7
Amount collected from selling Brand Z pens
= 384 u
= 384 x 7
= $2688
Answer(s): (a) 140; (b) $2688