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 $4312 from selling the notebooks. The prices of Brand R, Brand S, and Brand T notebooks were in the ratio 8 : 1 : 7. How much money was collected from selling Brand S notebooks?
(a)
Number of Brand R notebooks sold = 31
Number of Brand S notebooks sold = 46
Number of Brand T notebooks sold = 46
Total number of notebooks sold
= 31 + 46 + 46
= 123
(b)
|
Brand R |
Brand S |
Brand T |
Number |
31 |
46 |
46 |
Price |
8 u |
1 u |
7 u |
Total value |
248 u |
46 u |
322 u |
Total amount of money collected
= 248 u + 46 u + 322 u
= 616 u
616 u = 4312
1 u = 4312 ÷ 616 = 7
Amount collected from selling Brand S notebooks
= 46 u
= 46 x 7
= $322
Answer(s): (a) 123; (b) $322