Why are non-negative constraints used in LPP?

A. क्योंकि quantities negative नहीं हो सकतीं / Because quantities cannot be negative

Step 1: Identify the concept: this is LPP constraints. Step 2: Practical variables like production quantity time or resource cannot be negative so x ≥ 0 and y ≥ 0 are used. Step 3: Remember real quantities are usually non-negative.

Step 1: concept पहचानें: यह LPP constraints है। Step 2: Production quantity time or resource जैसे practical variables negative नहीं हो सकते इसलिए x ≥ 0 और y ≥ 0 लगाते हैं। Step 3: Real quantities usually non-negative याद रखें।