Question

There are 4 members in a house the per capita income of 4 members are $7000. The income of 3 members is 5000,8000,4500. Calculate the income of 4th member

Answer 1

Income of i member = 5000

Income of ii member = 8000

Income of iii member = 4500

Income of iv member = ?

Per capita income = 7000

Per Capita Income = Total income of the population / No. of population

                     7000  =  5000 + 8000 + 4500 + x / 4

                4 * 7000 =  5000 + 8000 + 4500 + x

                   28000 =   17500 + x

                             x =  28000 - 17500

                             x = 10500

Income of iv member is 10,500