Question

Assume there there are four families in a country the average per capita income of these families is rupees 5000 if the income of three families is rupees 4000, Rs.7000 and Rs.3000 respectively. what is the income of the fourth family??
(Jaldi jaldi batao....)​

Answer 1

Answer:

Let x be the income of the fourth family.

So, according to the question,

(4000 + 7000 + 3000 + x) ÷ 4 = 5000

14000 + x = 5000 × 4

x = 20000 - 14000

x = 6000

Hope it helps...