statement1:
a-b<2
b>a-2
b>=3-2 (as a>2)
b>=1 sufficient
statement2:
a-b>0
b<a
b<=3 (as a>2)
not sufficient
a-b<2
b>a-2
b>=3-2 (as a>2)
b>=1 sufficient
statement2:
a-b>0
b<a
b<=3 (as a>2)
not sufficient