suppose there are four families in a country with the per capita income of 15000.The income of three families is 10000 and 20000 and 12000.what is the income of the fourth family?
Answers
Answer :- $ 18,000
Explanation :-
Given that the total number of families = 4
First family with income = 15,000
Second family with income = 10,000
Third family with income = 20,000
Fourth family income = ?
Let the income of fourth family be x $. [ Per capita or average income is always measured in dollars ]
Per capita income = National Income / Total population
15,000 = 10,000 + 20,000 + 12,000 + x/ 4
15,000 × 4 = x + 42,000
x = 18,000
Therefore, the income of fourth family is $18,000
Answer: 18,000
Explanation:
Given,
Income of first family = 10000
Income of second family = 20000
Income of third Family = 12000
Let the income of 4th family be x
Total Number of family = 15000
Total Number of Family = 4
Total Income of Country = 10000 + 20000 + 12000 + x
= 42000 + x
We know that,
Per Capita Income = Total Income of Country/Number of total Families
15000 = (42000+x)/415000 × 4
15000 = 42000 + x 60000 = 42000 + x
x = 60000 - 42000
x = 18000
Hence,Income of fourth family is 18,000