X is in the set 2, 4, 8, 10, and x, what is x?
1) The average of the numbers is equal to the median
2) X is not 16
1) The average of the numbers is equal to the median
2) X is not 16
Average of the numbers = (2 + 4 + 8 + 10 + x)/5 = (24 + x)/5sud21 wrote:X is in the set 2, 4, 8, 10, and x, what is x?
1) The average of the numbers is equal to the median
2) X is not 16
Statement 1:
- # For x ≤ 4, median = 4 = (24 + x)/5 ---> x = -4
# For 4 < x < 8, median = x = (24 + x)/5 ---> x = 6
# For x ≥ 8, median = 8 = (24 + x)/5 ---> x = 16
Not sufficient
Statement 2: x can be anything.
Not sufficient
1 & 2 Together: x can be either -4 or 6.
Not sufficient
The correct answer is E.
