The line graph shows the total number of used lorries 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 lorries sold? Give the answer in short form. (Eg Jan, Feb)
- What fraction of the lorries was sold in the month of the lowest sale?
- The dealer was paid a fixed amount of money for every lorry he sold. He received $12000 more in June than in March. How much money did he receive from selling a lorry?
(a)
There was a consecutive increase in the number of lorries sold in April and May.
(b)
Total number of lorries
= 3 + 15 + 2 + 15 +28 + 17
= 80
Number of lorries sold in March = 2
Fraction of the lorries sold in the month of the lowest sale
=
280 =
140 (c)
Number of more lorries in June than in March
= 17 - 2
= 15
15 u = 12000
1 u = 12000 ÷ 15 = 800
Amount earned from selling a lorry = $800
Answer(s): (a) Apr, May or May, Apr; (b)
140; (c) $800