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 $3800 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
= 28 + 5 + 20 + 28 + 14 + 20
= 115
Number of vacuum cleaners sold in February = 5
Fraction of the vacuum cleaners sold in the month of the lowest sale
=
5115 =
123 (c)
Number of more vacuum cleaners sold in April than in February
= 28 - 5
= 23
23 u = 3800
1 u = 3800 ÷ 23 = 1300
Amount earned from selling a vacuum cleaner = $1300
Answer(s): (a) Mar, Apr or Apr, Mar; (b)
123; (c) $1300