PSLEA shop sold three brands of notebooks: Brand K, Brand L, and Brand M. The bar graph shows the number of notebooks sold for each brand in one day.
- How many notebooks were sold altogether?
- The shop collected $3955 from selling the notebooks. The prices of Brand K, Brand L, and Brand M notebooks were in the ratio 6 : 8 : 3. How much money was collected from selling Brand L notebooks?
(a)
Number of Brand K notebooks sold = 43
Number of Brand L notebooks sold = 49
Number of Brand M notebooks sold = 47
Total number of notebooks sold
= 43 + 49 + 47
= 139
(b)
|
Brand K |
Brand L |
Brand M |
Number |
43 |
49 |
47 |
Price |
6 u |
8 u |
3 u |
Total value |
258 u |
392 u |
141 u |
Total amount of money collected
= 258 u + 392 u + 141 u
= 791 u
791 u = 3955
1 u = 3955 ÷ 791 = 5
Amount collected from selling Brand L notebooks
= 392 u
= 392 x 5
= $1960
Answer(s): (a) 139; (b) $1960