PSLEA shop sold three brands of pens: Brand Z, Brand A, and Brand B. The bar graph shows the number of pens sold for each brand in one day.
- How many pens were sold altogether?
- The shop collected $1550 from selling the pens. The prices of Brand Z, Brand A, and Brand B pens were in the ratio 2 : 1 : 4. How much money was collected from selling Brand A pens?
(a)
Number of Brand Z pens sold = 51
Number of Brand A pens sold = 32
Number of Brand B pens sold = 44
Total number of pens sold
= 51 + 32 + 44
= 127
(b)
|
Brand Z |
Brand A |
Brand B |
Number |
51 |
32 |
44 |
Price |
2 u |
1 u |
4 u |
Total value |
102 u |
32 u |
176 u |
Total amount of money collected
= 102 u + 32 u + 176 u
= 310 u
310 u = 1550
1 u = 1550 ÷ 310 = 5
Amount collected from selling Brand A pens
= 32 u
= 32 x 5
= $160
Answer(s): (a) 127; (b) $160