PSLEA shop sold three brands of pencils: Brand Q, Brand R, and Brand S. The bar graph shows the number of pencils sold for each brand in one day.
- How many pencils were sold altogether?
- The shop collected $6972 from selling the pencils. The prices of Brand Q, Brand R, and Brand S pencils were in the ratio 1 : 8 : 7. How much money was collected from selling Brand R pencils?
(a)
Number of Brand Q pencils sold = 48
Number of Brand R pencils sold = 59
Number of Brand S pencils sold = 68
Total number of pencils sold
= 48 + 59 + 68
= 175
(b)
|
Brand Q |
Brand R |
Brand S |
Number |
48 |
59 |
68 |
Price |
1 u |
8 u |
7 u |
Total value |
48 u |
472 u |
476 u |
Total amount of money collected
= 48 u + 472 u + 476 u
= 996 u
996 u = 6972
1 u = 6972 ÷ 996 = 7
Amount collected from selling Brand R pencils
= 472 u
= 472 x 7
= $3304
Answer(s): (a) 175; (b) $3304