Answer :
Final answer:
Maria's opportunity cost of reading 100 pages of sociology is 50 pages of economics.
Explanation:
To calculate Maria's opportunity cost of reading 100 pages of sociology, we need to determine how many pages of economics she could have read in the same amount of time.
Since Maria can read 20 pages of economics in an hour and 50 pages of sociology in an hour, we can set up a proportion to find the number of hours it would take her to read 100 pages of sociology:
20 pages of economics / 1 hour = 50 pages of sociology / x hours
Cross-multiplying, we get:
20x = 50 * 1
Simplifying, we find that it would take Maria 2.5 hours to read 100 pages of sociology.
Now, we can calculate the opportunity cost by multiplying the number of hours it would take Maria to read 100 pages of sociology by the number of pages of economics she can read in an hour:
2.5 hours * 20 pages/hour = 50 pages
Therefore, Maria's opportunity cost of reading 100 pages of sociology is 50 pages of economics.
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