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 $34200 more in June than in March. 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 April and May.
(b)
Total number of vacuum cleaners
= 5 + 20 + 4 + 20 +24 + 23
= 96
Number of vacuum cleaners sold in March = 4
Fraction of the vacuum cleaners sold in the month of the lowest sale
=
496 =
124 (c)
Number of more vacuum cleaners in June than in March
= 23 - 4
= 19
19 u = 34200
1 u = 34200 ÷ 19 = 1800
Amount earned from selling a vacuum cleaner = $1800
Answer(s): (a) Apr, May or May, Apr; (b)
124; (c) $1800