The line graph shows the number of sweaters sold by a shop from February to July in 2013.
- What was the average number of sweaters sold per month from February to July in 2013?
- The total number of sweaters sold for the same period from February to July in 2012 was 720. Find the percentage decrease in the total number of sweaters sold for the same period from 2012 to 2013
(a)
Total sweaters sold from February to July in 2013
= 70 + 72 + 24 + 37 + 52 + 69
= 324
Average sweaters sold from February to July in 2013
= 324 ÷ 6
= 54
(b)
Decrease in the number of sweaters sold
= 720 - 324
= 396
Percentage decrease in the total number of sweaters sold from 2012 to 2013
=
396720 x 100%
=
1120x 100%
= 55%
Answer(s): (a) 54; (b) 55%