The line graph shows the total number of used vacuum cleaners 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 vacuum cleaners sold? Give the answer in short form. (Eg Jan, Feb)
- What fraction of the vacuum cleaners was sold in the month of the lowest sale?
- The dealer was paid a fixed amount of money for every vacuum cleaner he sold. He received $4400 more in April than in February. How much money did he receive from selling a vacuum cleaner?
(a)
There was a consecutive increase in the number of vacuum cleaners sold in March and April.
(b)
Total number of vacuum cleaners
= 16 + 3 + 19 + 20 + 19 + 19
= 96
Number of vacuum cleaners sold in February = 3
Fraction of the vacuum cleaners sold in the month of the lowest sale
=
396 =
132 (c)
Number of more vacuum cleaners sold in April than in February
= 20 - 3
= 17
17 u = 4400
1 u = 4400 ÷ 17 = 600
Amount earned from selling a vacuum cleaner = $600
Answer(s): (a) Mar, Apr or Apr, Mar; (b)
132; (c) $600