Answer:
10
Total
Marginal
Explanation:
Marginal utility is the change in utility that occurs from consuming one extra unit of a good.
Marginal utitiy = 55 utils - 45 utils = 10 utils
Total utility is the utility derived from consuming a good or service.
When :
1. Total utility is 45 , marginal utility is 15
2. total utility is 55, marginal utility is 10
This shows that as total utility increases, marginal utility falls.
I hope my answer helps you