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 $1800 more in May than in June. How much money did he receive from selling a lorry?
(a)
There was a consecutive increase in the number of lorries sold in February and March.
(b)
Total number of lorries
= 8 + 13 + 28 + 7 + 22 + 13
= 91
Number of lorries sold in April = 7
Fraction of the lorries sold in the month of the lowest sale
=
791 =
113 (c)
Number of more lorries sold in May than in June
= 22 - 13
= 9
9 u = 1800
1 u = 1800 ÷ 9 = 200
Amount earned from selling a lorry = $200
Answer(s): (a) Feb, Mar or Mar, Feb; (b)
113; (c) $200