PSLEA shop sold three brands of notebooks: Brand R, Brand S, and Brand T. The bar graph shows the number of notebooks sold for each brand in one day.
- How many notebooks were sold altogether?
- The shop collected $4718 from selling the notebooks. The prices of Brand R, Brand S, and Brand T notebooks were in the ratio 3 : 5 : 6. How much money was collected from selling Brand S notebooks?
(a)
Number of Brand R notebooks sold = 66
Number of Brand S notebooks sold = 34
Number of Brand T notebooks sold = 51
Total number of notebooks sold
= 66 + 34 + 51
= 151
(b)
|
Brand R |
Brand S |
Brand T |
Number |
66 |
34 |
51 |
Price |
3 u |
5 u |
6 u |
Total value |
198 u |
170 u |
306 u |
Total amount of money collected
= 198 u + 170 u + 306 u
= 674 u
674 u = 4718
1 u = 4718 ÷ 674 = 7
Amount collected from selling Brand S notebooks
= 170 u
= 170 x 7
= $1190
Answer(s): (a) 151; (b) $1190