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 $1200 more in May than in June. How much money did he receive from selling a notebook?
(a)
There was a consecutive increase in the number of notebooks sold in February and March.
(b)
Total number of notebooks
= 8 + 15 + 29 + 5 + 18 + 15
= 90
Number of notebooks sold in April = 5
Fraction of the notebooks sold in the month of the lowest sale
=
590 =
118 (c)
Number of more notebooks sold in May than in June
= 18 - 15
= 3
3 u = 1200
1 u = 1200 ÷ 3 = 400
Amount earned from selling a notebook = $400
Answer(s): (a) Feb, Mar or Mar, Feb; (b)
118; (c) $400