The line graph shows the number of skirts sold by a shop from April to September in 2013.
- What was the average number of skirts sold per month from April to September in 2013?
- The total number of skirts sold for the same period from April to September in 2012 was 800. Find the percentage decrease in the total number of skirts sold for the same period from 2012 to 2013
(a)
Total skirts sold from April to September in 2013
= 93 + 34 + 94 + 23 + 49 + 97
= 390
Average skirts sold from April to September in 2013
= 390 ÷ 6
= 65
(b)
Decrease in the number of skirts sold
= 800 - 390
= 410
Percentage decrease in the total number of skirts sold from 2012 to 2013
=
410800 x 100%
=
4180x 100%
= 51.25%
Answer(s): (a) 65; (b) 51.25%