00:01
Okay, here we're asked to find the marginal utility from the fourth pint of ice cream.
00:09
So the marginal utility is the change in utility as you go from one unit to the next.
00:22
So in this table they gave us, we have the number of pints, 0, 1, 2, 3, 4, 5, and total utility.
00:38
So there's zero utility when you consume zero, but 25 when you consume one pint.
00:47
And then the total utility for two pints is 45, the total utility for 60.
00:53
So it's increasing each time, but at 60, it's, i mean, at three pints, it's 60 and at four pints, at 70...