sandy wrote:
The top and bottom of each bar indicate, respectively, the highest and lowest daily number of shirts sold during the month. The heavy line across each bar indicates the average (arithmetic mean) number of shirts sold per day during the month.
The average (arithmetic mean) number of shirts sold per day during February was approximately what percent greater than the average number sold during January?
(A) 10%
(B) 20%
(C) 30%
(D) 40%
(E) 70%
The solid bar denotes the AVERAGE daily shirts sales for that month.
In January, the average was about
25In February, the average was about
35Percent increase = 100(new - old)/old
So, percent increase = 100(
35 -
25)/
25= 100(10)/25
= 40
Answer:
Cheers,
Brent
_________________
Brent Hanneson - founder of Greenlight Test Prep