Question

assume there r 4 families in a country. The average per capita income of these families is Rs 5000. If the income of 3 families is Rs 4000, 7000, and 3000 respectively, what is the income of the fourth family ​

Answer 1

Answer:

6000

Explanation:

let the income of fourth family be x

Per capita income - average income

So,

4000+7000+3000+x/4. = 5000

4000+7000+3000+x=20000

14000+x = 20000

X= 6000

Answer 2

Explanation:

using arithmetic mean and taking the income of 4th family as x we can find their income