Answer:
diminishing ; assumed
Step-by-step explanation:
Given:
total utils from doing so after
the fourth, fifth, sixth, and seventh wings are 30, 50, 65, 72
Now,
marginal utility from fifth = total utility from fifth - total utility from fourth
= 50 - 30
= 20 utils.
marginal utility from sixth = total utility from sixth - total utility from fifth
= 65 - 50
= 15 utils.
marginal utility from seventh = total utility from - total utility from sixth
= 72 - 65
= 7 utils.
Here,
the marginal utility is diminishing i.e from 20 to 15 and from 15 to 7 utils
also,
it is assumed that the marginal utility will decrease when we analyse the consumer utility because the consumers gets satisfied and thus, the increase in satisfaction leads to the decrease in utility
hence, the answer is diminishing ; assumed