Statements M @ B, B # N, N $ R, R © K Conclusions I. K # B II. R © B III. M $ R IV. N © M

Statements
M @ B ⇒ M = B
B # N ⇒ B > N
N $ R ⇒ N ≥ R
R © K ⇒ R < K
i.e., M = B > N ≥ R < K
Conclusions
I. K # B ⇒ K > B          (x)
II. R © B ⇒ R < B         (✔)
III. M $ R ⇒ M ≥ R        (x)
IV. N © M ⇒ N < M      (✔)
Hence, II and IV are definitely true.