(1) The median of Set A is 2 greater than the average (arithmetic mean) of Set A
mean = x
median = x + 2
Lets say
x=10
x+ 2 = 12
so the total of the 5 numbers needs to be 50 and include 12.
1 + 2 + 12 + 15 + 20 = 50
Mean = 10
Median = 12
Range = 19
Lets say x = 6
x+2 = 8
Total of the numbers will be 30 and include 8.
1 + 2 + 8 + 9 + 10
Mean = 6
Median =8
Range = 9
INSUFF
a + b +c +d +e/2 = x
a+ b + x + 2 +e/2 = x
(2) The greatest integer is 8
if the smallest integer is 1 then the range is 7
if the smallest integer is 2 then the range is 6
INSUFF
Together
(a + b +(x + 2) + d + 8)/2 = x
1 + 2 + 7 + 7 + 8
mean = 5
median =7
range = 7
2 + 4 + 8 + 8 + 8
mean = 6
median = 8
range = 6
INSUFF
I choose E.
Last edited by dmateer25 on Wed Jan 14, 2009 11:35 am, edited 1 time in total.