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 $1384 from selling the notebooks. The prices of Brand R, Brand S, and Brand T notebooks were in the ratio 7 : 2 : 8. How much money was collected from selling Brand S notebooks?
(a)
Number of Brand R notebooks sold = 54
Number of Brand S notebooks sold = 53
Number of Brand T notebooks sold = 26
Total number of notebooks sold
= 54 + 53 + 26
= 133
(b)
|
Brand R |
Brand S |
Brand T |
Number |
54 |
53 |
26 |
Price |
7 u |
2 u |
8 u |
Total value |
378 u |
106 u |
208 u |
Total amount of money collected
= 378 u + 106 u + 208 u
= 692 u
692 u = 1384
1 u = 1384 ÷ 692 = 2
Amount collected from selling Brand S notebooks
= 106 u
= 106 x 2
= $212
Answer(s): (a) 133; (b) $212