Answer:
10%
Explanation:
The average tax rate is the total amount of tax divided by total taxable income.
Since the family's income is $75,000, they will pay a tax of 10% for the first $50,000, then for the remaining $25,000 they will not be charged.
Therefore their average tax is the tax paid for the first $50000 which is 10%.
10/100 * 50000 = 5000
Avg tax = 5000/50000 = 10%