A family has an average income of $5000. If the father earns $7000, what is the
Practice Questions
Q1
A family has an average income of $5000. If the father earns $7000, what is the average income of the mother and child?
4000
4500
5000
5500
Questions & Step-by-Step Solutions
A family has an average income of $5000. If the father earns $7000, what is the average income of the mother and child?
Correct Answer: 4000
Step 1: Understand that the average income of the family is $5000 and there are 3 members in the family (father, mother, and child).
Step 2: Calculate the total income of the family by multiplying the average income by the number of family members: 5000 * 3 = 15000.
Step 3: The father earns $7000. To find the combined income of the mother and child, subtract the father's income from the total income: 15000 - 7000 = 8000.
Step 4: Now, to find the average income of the mother and child, divide their combined income by the number of them: 8000 / 2 = 4000.
Average Income Calculation – Understanding how to calculate average income based on total income and the number of individuals.
Subtraction in Context – Applying subtraction to find the remaining income after accounting for one individual's earnings.
Division for Average – Using division to find the average income of a subset of individuals.