An IT shop sells laptops, tablets and mobile phones. The composite bar chart shows information on sales over the last three years.
800
a) How many laptops were sold in 2017?
700
(1)
600
b) Work out the total number of mobile
500
phones sold in the 3 years.
Number sold
400
+
(3)
300
c) Which of the items had the greatest
increase in sales over the 3 years?
Give a reason for your answer.
200
100
+
0
2017
2018
2019
(2)
Total marks: 6
Key:
Laptops
Tablets
Mobile phones