x, a, z, and b are single digit positive integers. x = ¼ a. z = ¼ b. (10a + b) – (10x + z) could NOT equal	Choose the correct choice:
A) 33  B) 36  C) 44  D) 63  E) 66
From the given equations, a = 4x, b = 4z   (10a+b) - (10x+z) = 40x+4z - 10x-z = 30x +3z = 3(10x+z)   Therefore the resultant should be divisible by 3 which isn't possible only in the case of C.   Hence 44 is the answer
<result>C</result>
x, a, z, and b are single digit positive integers. x = ¼ a. z = ¼ b. (10a + b) – (10x + z) could NOT equal