The line graph shows the number of dresses sold by a shop from April to September in 2012.
- What was the average number of dresses sold per month from April to September in 2012?
- The total number of dresses sold for the same period from April to September in 2011 was 950. Find the percentage decrease in the total number of dresses sold for the same period from 2011 to 2012
(a)
Total dresses sold from April to September in 2012
= 41 + 83 + 25 + 26 + 73 + 94
= 342
Average dresses sold from April to September in 2012
= 342 ÷ 6
= 57
(b)
Decrease in the number of dresses sold
= 950 - 342
= 608
Percentage decrease in the total number of dresses sold from 2011 to 2012
=
608950 x 100%
=
1625x 100%
= 64%
Answer(s): (a) 57; (b) 64%