The line graph shows the number of dresses sold by a shop from October to March in 2012.
- What was the average number of dresses sold per month from October to March in 2012?
- The total number of dresses sold for the same period from October to March in 2011 was 750. Find the percentage decrease in the total number of dresses sold for the same period from 2011 to 2012
(a)
Total dresses sold from October to March in 2012
= 45 + 35 + 64 + 20 + 46 + 66
= 276
Average dresses sold from October to March in 2012
= 276 ÷ 6
= 46
(b)
Decrease in the number of dresses sold
= 750 - 276
= 474
Percentage decrease in the total number of dresses sold from 2011 to 2012
=
474750 x 100%
=
79125x 100%
= 63.2%
Answer(s): (a) 46; (b) 63.2%