PSLEA shop sold three brands of notebooks: Brand M, Brand N, and Brand P. The bar graph shows the number of notebooks sold for each brand in one day.
- How many notebooks were sold altogether?
- The shop collected $1581 from selling the notebooks. The prices of Brand M, Brand N, and Brand P notebooks were in the ratio 1 : 5 : 4. How much money was collected from selling Brand N notebooks?
(a)
Number of Brand M notebooks sold = 59
Number of Brand N notebooks sold = 56
Number of Brand P notebooks sold = 47
Total number of notebooks sold
= 59 + 56 + 47
= 162
(b)
|
Brand M |
Brand N |
Brand P |
Number |
59 |
56 |
47 |
Price |
1 u |
5 u |
4 u |
Total value |
59 u |
280 u |
188 u |
Total amount of money collected
= 59 u + 280 u + 188 u
= 527 u
527 u = 1581
1 u = 1581 ÷ 527 = 3
Amount collected from selling Brand N notebooks
= 280 u
= 280 x 3
= $840
Answer(s): (a) 162; (b) $840