The line graph shows the number of dresses sold by a shop from August to January in 2012.
- What was the average number of dresses sold per month from August to January in 2012?
- The total number of dresses sold for the same period from August to January in 2011 was 960. Find the percentage decrease in the total number of dresses sold for the same period from 2011 to 2012
(a)
Total dresses sold from August to January in 2012
= 24 + 56 + 58 + 81 + 32 + 85
= 336
Average dresses sold from August to January in 2012
= 336 ÷ 6
= 56
(b)
Decrease in the number of dresses sold
= 960 - 336
= 624
Percentage decrease in the total number of dresses sold from 2011 to 2012
=
624960 x 100%
=
1320x 100%
= 65%
Answer(s): (a) 56; (b) 65%