Distinguish between: 3. Total utility and Marginal Utility

Distinguish between:
3. Total utility and Marginal Utility
Answer: 
3)

Total Utility
Marginal Utility
It is the aggregate utility derived from the consumption of all the units of a commodity.
It is the addition to the total utility due to the consumption of an additional unit of a commodity.
TUn = MU1 + MU2 + MU3 + ....+ MUn = ∑MU
MUn = TUn– TUn –1
It is the utility derived from all the units consumed. 
It is the utility derived from the last unit consumed. 

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