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 $4000 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
= 7 + 6 + 24 + 26 + 21 + 24
= 108
Number of vacuum cleaners sold in February = 6
Fraction of the vacuum cleaners sold in the month of the lowest sale
=
6108 =
118 (c)
Number of more vacuum cleaners sold in April than in February
= 26 - 6
= 20
20 u = 4000
1 u = 4000 ÷ 20 = 1200
Amount earned from selling a vacuum cleaner = $1200
Answer(s): (a) Mar, Apr or Apr, Mar; (b)
118; (c) $1200