Question

Observe the given label and answer the questions:

Unit of commodity	Total Utility	Marginal Utility
1	10	`square`
2	18	8
3	`square`	6
4	28	4
5	30	`square`
6	30	0
7	`square`	−2

Questions:

1. Complete the above table. [2]
2. When total utility increases at a diminishing rate, then marginal utility goes on `square`. [1]
3. After consuming six units of the commodity, MU becomes `square`. [1]

Answer 1

1. Unit of commodity	Total Utility	Marginal Utility
   1	10	\[\boxed{10}\]
   2	18	8
   3	\[\boxed{24}\]	6
   4	28	4
   5	30	\[\boxed{2}\]
   6	30	0
   7	\[\boxed{28}\]	−2

2. Diminishing
3. Zero