Question

in a small village there are four families with an average income of 10000 if the income of three families is
14000
7500
13000
9000​

Answer 1

there are 7500 families are there

Answer 2

GIVEN,

the income of four families is 10000

TO FIND,

income of three families.

SOLUTION,

here we see that the average income is 10000 for four famlies,

so we calculate individual families income,

$average = \frac{total income}{number of families}\\\\each family income= \frac{10000}{4}$

= 2500.

hence we see that each family has an income of 2500,

which means the income of three families is

= 3x 2500

= 7500

THEREFORE THE INCOME OF THREE FAMILIES IN THE SMALL VILLAGE IS 7500.