IMO E
Stmt 1 -
7x-2y>0
=> 7x>2y
=>y<7x/2
plug a value : say x=2, since x>0
=>y<7
=>y can be either positive or negative
Hence Insufficient
Stmt 2 -
-y<x
=> y > -x
Plug values : x = 2, since x>0
=>y > -2
=>y can be either positive or negative
Hence Insufficient
Stmt 1 and Stmt 2 -
7x/2 > y > -x
Plug values : x = 2, since x>0
=>7 > y > -2
=>y can be either positive or negative
Hence Insufficient
Note: The reason I took x=2 as the only VIC is because, all we care is to prove that the stmts are insufficient.Had the value x=2 satisfied any of these two stmts, then we should try with different values for 'x' to figure out the solution.
