📚 Learning Guide
Marginal Utility Per Dollar
hard

A consumer has a budget of $100 and is considering two products: Product X, which provides 20 units of utility for $20, and Product Y, which provides 30 units of utility for $30. If the consumer wants to maximize their utility while accounting for opportunity cost, which product should they choose to purchase if they can only choose one?

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Learning Path
Learning Path

Question & Answer
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Choose the Best Answer

A

Product Y

B

Product X

C

Neither product

D

Both products

Understanding the Answer

Let's break down why this is correct

Answer

Both products give the same utility per dollar (20/20 = 1 and 30/30 = 1), so the consumer’s marginal utility per dollar is equal. However, buying Product Y gives 30 units of utility while buying Product X gives only 20 units, so the opportunity cost of choosing X is the extra 10 units of utility that Y would provide. Because the consumer can only buy one product, they should choose Product Y to maximize total utility while still spending the same amount per unit of utility. In short, Product Y is the better choice because it delivers more utility for the same dollar‑worth of spending.

Detailed Explanation

Both products give the same utility per dollar, but Product Y gives more total utility. Other options are incorrect because Choosing X because it is cheaper ignores the fact that you lose 10 units of enjoyment; Skipping both means you keep all money, but you miss the chance to enjoy anything at all.

Key Concepts

Marginal Utility Per Dollar
Utility Maximization
Opportunity Cost
Topic

Marginal Utility Per Dollar

Difficulty

hard level question

Cognitive Level

understand

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