Mathematical Operations Questions

• If '+' means '÷', 'x' means '+', '-' means 'x' and '÷' means '-', then which of the following equation is correct?
• Statements :: D > B, C > K, K ≤ N, B < C, N < B Conclusions :: I. D > N II. C ≥ K
• Statements B < C, D > B, C > K, K ≤ N, N < B Conclusions I. C > N II. B > K
• Statement :: K ≥ L > M ≥ N Conclusions :: I. N ≤ K II. N < K
• Statement :: Z ≥ Y = W ≥ X Conclusions :: I. W < Z II. W = Z
• Statements :: R # J, J $ D, D @ K, K % T Conclusions :: I. T # D II. T @ D III. R # K IV. J $ T
• Statements :: T % R, R $ M, M @ D, D © H Conclusions :: I. D % R II. H # R III. T © M IV. T % D
• Statements M @ B, B # N, N $ R, R © K Conclusions I. K # B II. R © B III. M $ R IV. N © M
• Statements F # H, H @ M, M © E, E $ J Conclusions I. J © M II. E # H III. M © F IV. F # E
• Statements :: D % A, A @ B, B © K, K % M Conclusions :: I. B $ D II. K # A III. M # B IV. A © M
• Statements M @ D, D δ K, K © R Conclusions I. R $ M II. K δ M III. K $ M
• Statements F ∗ T, T $ N, N @ R Conclusions I. R $ T II. N © F III. F $ R
• Statements B © N, N @ R, F ∗ R Conclusions I. B © R II. F ∗ N III. R $ B
• Statements D $ M, M ∗ B, B δ J Conclusions I. J © D II. B @ D III. J @ M
• Statements W δ K, K © F, F $ M Conclusions I. M © K II. W @ F III. F @ W
• Statements L > M, M > N, N > P. Conclusions I. L > P II. M > P
• Statements A > B, B =H, H > G Conclusions I. A > G II. A > H
• Statements H < J, F < H, I ≤ J = K Conclusions I. H > I II. I ≥ F
• Statements A < B < C ≤ D = E Conclusions I. B ≤ E II. B < E
• Statements P > M > Q, Q > Z > N Conclusions I. M ≥ Z II. N < P