Under what condition is the sale of a commodity with a quantity representation considered illegal?

The sale of a commodity with a quantity representation is considered illegal when it is less than the true quantity. This principle is rooted in the necessity for honesty and transparency in trade. When a seller represents a quantity that is lower than what is actually provided, it constitutes fraud, misleading the buyer about what they are receiving. This is crucial for fair market practices and consumer protection, ensuring that individuals do not receive less than what they pay for.

The regulation is designed to maintain trust in commercial transactions and to promote fair competition among sellers. The integrity of quantity representation is fundamental to the functioning of markets, as it allows consumers to make informed purchasing decisions based on accurate information.