average

GmatKiss wrote:The average of three positive integers is 44 and the median is 42. What is the least possible value of the greatest of the three numbers?

A) 6
B) 42
C) 48
D) 89
E) 128

Let the numbers be x, y, z, where x < y < z (so, the median = y, and we're trying to find the least possible value of z)

Average = 44, so x+y+z = 3(44) = 132

If the median (y) is 42, then x+z = 90 (since x+y+z = 132 )

Now let's check the answer choices:
A) Eliminate it since z > 42
B) If z = 42, then x = 48 but x is supposed to be the smallest number. Eliminate it.
C) If z = 48, then x = 42. Perfect! This satisfies the condition that x < y < z

So, we get x=42, y=42 and z=48

So, the answer is C

Cheers,
Brent