Final answer:
If the estimated number of students increases by 10%, the net income of Tutor, Inc. will increase by 10%.
Step-by-step explanation:
To find the increase in net income, we need to consider the change in the number of students served. If the estimated number of students increases by 10%, the new number of students served will be 500 + 10% of 500 = 500 + 0.1 × 500 = 550 students.
The new net income can be calculated by multiplying the new number of students served by the charging price per student, which is $200. So, the new net income is 550 × $200 = $110,000.
The increase in net income is the difference between the new net income and the old net income. The old net income is the net income with 500 students, which is 500 × $200 = $100,000.
Therefore, the increase in net income is $110,000 - $100,000 = $10,000.
The increase in net income represents the percentage increase in net income if we divide it by the old net income and multiply by 100%. So, the percentage increase in net income is ($10,000 / $100,000) × 100% = 10%.
Therefore, the correct answer is c. 10%.