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 $4200 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
= 5 + 6 + 4 + 6 +21 + 10
= 52
Number of lorries sold in March = 4
Fraction of the lorries sold in the month of the lowest sale
=
452 =
113 (c)
Number of more lorries in June than in March
= 10 - 4
= 6
6 u = 4200
1 u = 4200 ÷ 6 = 700
Amount earned from selling a lorry = $700
Answer(s): (a) Apr, May or May, Apr; (b)
113; (c) $700