Chapter 9R, Problem 25MCQ

To determine

The total utility if the marginal utility is positive.

Explanation of Solution

If marginal utility is positive then total utility would be increased and it would be positive too because the total utility cannot be negative. The total utility will increase at decreasing rate when marginal utility declined but it would not be negative as it is the total of all utilities which are consumed.

Therefore, the option b is correct.

Economics Concept Introduction

Introduction:

By consuming or gaining one additional unit of a good or service, a benefit received by the user or consumer is called marginal utility.