PSLEA shop sold three brands of notebooks: Brand L, Brand M, and Brand N. The bar graph shows the number of notebooks sold for each brand in one day.
- How many notebooks were sold altogether?
- The shop collected $860 from selling the notebooks. The prices of Brand L, Brand M, and Brand N notebooks were in the ratio 1 : 3 : 6. How much money was collected from selling Brand M notebooks?
(a)
Number of Brand L notebooks sold = 49
Number of Brand M notebooks sold = 57
Number of Brand N notebooks sold = 35
Total number of notebooks sold
= 49 + 57 + 35
= 141
(b)
|
Brand L |
Brand M |
Brand N |
Number |
49 |
57 |
35 |
Price |
1 u |
3 u |
6 u |
Total value |
49 u |
171 u |
210 u |
Total amount of money collected
= 49 u + 171 u + 210 u
= 430 u
430 u = 860
1 u = 860 ÷ 430 = 2
Amount collected from selling Brand M notebooks
= 171 u
= 171 x 2
= $342
Answer(s): (a) 141; (b) $342