The line graph shows the number of blouses sold by a shop from February to July in 2011.
- What was the average number of blouses sold per month from February to July in 2011?
- The total number of blouses sold for the same period from February to July in 2010 was 896. Find the percentage decrease in the total number of blouses sold for the same period from 2010 to 2011
(a)
Total blouses sold from February to July in 2011
= 40 + 30 + 84 + 63 + 80 + 39
= 336
Average blouses sold from February to July in 2011
= 336 ÷ 6
= 56
(b)
Decrease in the number of blouses sold
= 896 - 336
= 560
Percentage decrease in the total number of blouses sold from 2010 to 2011
=
560896 x 100%
=
58x 100%
= 62.5%
Answer(s): (a) 56; (b) 62.5%