The line graph shows the total number of used notebooks sold by a dealer in the first six months of the year.
- In which two months were there a consecutive increase in the number of notebooks sold? Give the answer in short form. (Eg Jan, Feb)
- What fraction of the notebooks was sold in the month of the lowest sale?
- The dealer was paid a fixed amount of money for every notebook he sold. He received $12800 more in June than in March. How much money did he receive from selling a notebook?
(a)
There was a consecutive increase in the number of notebooks sold in April and May.
(b)
Total number of notebooks
= 5 + 8 + 2 + 8 +25 + 10
= 58
Number of notebooks sold in March = 2
Fraction of the notebooks sold in the month of the lowest sale
=
258 =
129 (c)
Number of more notebooks in June than in March
= 10 - 2
= 8
8 u = 12800
1 u = 12800 ÷ 8 = 1600
Amount earned from selling a notebook = $1600
Answer(s): (a) Apr, May or May, Apr; (b)
129; (c) $1600