From Statement A: This statement is clearly insufficient. The answer can given only when exact values of a, b and K are known. For example let (a, b) = (4, 2) or
a
b
=2 Case 1: K = 0
a+K
b+K
=
a
b
Case 2: K = 2
a+K
b+K
=
6
4
=
3
2
<
3
b
Case 3: K = -1
a+K
b+K
=
3
1
=3>
a
b
From Statement B: As explained above for Statement A, this statement is also insufficient to answer without knowing the exact values of a, b and K. Combining Statement A and Statement B: Even the two statments combined cannot give a unique answer.