Assume there are four families in a country. The average per capita income of these families is Rs 5000 if the income of three familiars is Rs. 4000, Rs. 7000, and Rs. 3000 respectively, what is the income of the fourth family?

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Rs 7500

Rs 3000

Rs 2000

Rs 6000

answer is D.

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Detailed Solution

The average or per capita income is the country's total income divided by the total population. The question given has four families. Therefore,
The total population can be considered as the sum of the incomes of the four families. Next, you need to add up the total income of all the families, which is Rs. 14,000. The average income is provided as Rs.5000.
Equalising both values yields an unknown value for the income of the fourth family. The income of the 4th family is Rs. It will be 6000.
This can lead to the understanding that the average income does not depend on individual income inequality.

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