The fact that paper towels are available free of cost in a washroom suggests that the marginal utility of paper towels diminishes to zero for each individual.

Question

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The marginal utility of paper towels diminishes to zero for each individual because they are available free of cost in a washroom. This means that the additional satisfaction derived from using one more paper towel is negligible, as there is no cost associated with using them.

The Fact That Paper Towels Are Available Free of Cost