Answer:
The correct answer is 10 chips.
Step-by-step explanation:
A person is eating chips. Initially, the marginal utility is very high, but after 10 chips it starts declining. It declines till 49 chips and after that it becomes negative.
We see that the marginal utility derived from the consumption of chips start to decline after consuming 10 chips.
This implies that marginal utility is being maximized at the consumption of 10 chips.
So the utility-maximizing quantity of chips is 10 chips.