PSLEA shop sold three brands of pencils: Brand C, Brand D, and Brand E. The bar graph shows the number of pencils sold for each brand in one day.
- How many pencils were sold altogether?
- The shop collected $1690 from selling the pencils. The prices of Brand C, Brand D, and Brand E pencils were in the ratio 2 : 3 : 1. How much money was collected from selling Brand D pencils?
(a)
Number of Brand C pencils sold = 42
Number of Brand D pencils sold = 69
Number of Brand E pencils sold = 47
Total number of pencils sold
= 42 + 69 + 47
= 158
(b)
|
Brand C |
Brand D |
Brand E |
Number |
42 |
69 |
47 |
Price |
2 u |
3 u |
1 u |
Total value |
84 u |
207 u |
47 u |
Total amount of money collected
= 84 u + 207 u + 47 u
= 338 u
338 u = 1690
1 u = 1690 ÷ 338 = 5
Amount collected from selling Brand D pencils
= 207 u
= 207 x 5
= $1035
Answer(s): (a) 158; (b) $1035