The line graph shows the number of shirts sold by a shop from May to October in 2015.
- What was the average number of shirts sold per month from May to October in 2015?
- The total number of shirts sold for the same period from May to October in 2014 was 920. Find the percentage decrease in the total number of shirts sold for the same period from 2014 to 2015
(a)
Total shirts sold from May to October in 2015
= 52 + 26 + 61 + 35 + 20 + 82
= 276
Average shirts sold from May to October in 2015
= 276 ÷ 6
= 46
(b)
Decrease in the number of shirts sold
= 920 - 276
= 644
Percentage decrease in the total number of shirts sold from 2014 to 2015
=
644920 x 100%
=
710x 100%
= 70%
Answer(s): (a) 46; (b) 70%