Principles of Microeconomics: does John show diminishing marginal utility for coke, or does he show increasing marginal utility for coke?

Principles of Microeconomics John likes Coca-Cola. After consuming one Coke, John has a total utility of 10 utils. After two Cokes, he has a total utility of 25 utils. After three Cokes, he has a total utility of 50 utils. Does John show diminishing marginal utility for Coke, or does he show increasing marginal utility … Read more