Answer: $35,000
Step-by-step explanation:
Given that,
college tuition = $15,000 a year
Instead of going to college, Ron could take a full-time job that pays $20,000
Opportunity cost is the benefit that is foregone for an individual by choosing one alternative over other alternatives available to him.
If the opportunity cost is lower for an individual then this will benefit him whereas if the opportunity cost is higher then this will not benefit the individuals.
Here, we are assuming that $20,000 is his annual earning.
Therefore, the opportunity cost of attending college for one year is $20,000 + $15000 = $35,000.