PSLEA shop sold three brands of notebooks: Brand N, Brand P, and Brand Q. The bar graph shows the number of notebooks sold for each brand in one day.
- How many notebooks were sold altogether?
- The shop collected $3731 from selling the notebooks. The prices of Brand N, Brand P, and Brand Q notebooks were in the ratio 4 : 7 : 1. How much money was collected from selling Brand P notebooks?
(a)
Number of Brand N notebooks sold = 51
Number of Brand P notebooks sold = 37
Number of Brand Q notebooks sold = 70
Total number of notebooks sold
= 51 + 37 + 70
= 158
(b)
|
Brand N |
Brand P |
Brand Q |
Number |
51 |
37 |
70 |
Price |
4 u |
7 u |
1 u |
Total value |
204 u |
259 u |
70 u |
Total amount of money collected
= 204 u + 259 u + 70 u
= 533 u
533 u = 3731
1 u = 3731 ÷ 533 = 7
Amount collected from selling Brand P notebooks
= 259 u
= 259 x 7
= $1813
Answer(s): (a) 158; (b) $1813