PSLEA shop sold three brands of staplers: Brand C, Brand D, and Brand E. The bar graph shows the number of staplers sold for each brand in one day.
- How many staplers were sold altogether?
- The shop collected $4290 from selling the staplers. The prices of Brand C, Brand D, and Brand E staplers were in the ratio 1 : 3 : 7. How much money was collected from selling Brand D staplers?
(a)
Number of Brand C staplers sold = 45
Number of Brand D staplers sold = 67
Number of Brand E staplers sold = 67
Total number of staplers sold
= 45 + 67 + 67
= 179
(b)
|
Brand C |
Brand D |
Brand E |
Number |
45 |
67 |
67 |
Price |
1 u |
3 u |
7 u |
Total value |
45 u |
201 u |
469 u |
Total amount of money collected
= 45 u + 201 u + 469 u
= 715 u
715 u = 4290
1 u = 4290 ÷ 715 = 6
Amount collected from selling Brand D staplers
= 201 u
= 201 x 6
= $1206
Answer(s): (a) 179; (b) $1206