PSLEA shop sold three brands of pencils: Brand K, Brand L, and Brand M. The bar graph shows the number of pencils sold for each brand in one day.
- How many pencils were sold altogether?
- The shop collected $8040 from selling the pencils. The prices of Brand K, Brand L, and Brand M pencils were in the ratio 6 : 8 : 7. How much money was collected from selling Brand L pencils?
(a)
Number of Brand K pencils sold = 31
Number of Brand L pencils sold = 70
Number of Brand M pencils sold = 37
Total number of pencils sold
= 31 + 70 + 37
= 138
(b)
|
Brand K |
Brand L |
Brand M |
Number |
31 |
70 |
37 |
Price |
6 u |
8 u |
7 u |
Total value |
186 u |
560 u |
259 u |
Total amount of money collected
= 186 u + 560 u + 259 u
= 1005 u
1005 u = 8040
1 u = 8040 ÷ 1005 = 8
Amount collected from selling Brand L pencils
= 560 u
= 560 x 8
= $4480
Answer(s): (a) 138; (b) $4480