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 $2544 from selling the notebooks. The prices of Brand M, Brand N, and Brand P notebooks were in the ratio 2 : 7 : 5. How much money was collected from selling Brand N notebooks?
(a)
Number of Brand M notebooks sold = 55
Number of Brand N notebooks sold = 33
Number of Brand P notebooks sold = 59
Total number of notebooks sold
= 55 + 33 + 59
= 147
(b)
|
Brand M |
Brand N |
Brand P |
Number |
55 |
33 |
59 |
Price |
2 u |
7 u |
5 u |
Total value |
110 u |
231 u |
295 u |
Total amount of money collected
= 110 u + 231 u + 295 u
= 636 u
636 u = 2544
1 u = 2544 ÷ 636 = 4
Amount collected from selling Brand N notebooks
= 231 u
= 231 x 4
= $924
Answer(s): (a) 147; (b) $924