Question

There are four family's with per capita income rs 40,000, family s earn,'s rs39,000family b earn,'s rs 45000 , family c earn's rs 28000 what is the income of family d

Answer 1

48000

Step-by-step explanation:

average income= total income/ population

40000=39000+45000+28000+d/4

40000=112000+d/4

160000-112000=d

d=48000

Answer 2

Given :

Family A's earn = Rs. 39000

Family B's earn = Rs. 45000

Family C's earn = Rs. 28000

Average income per capita = Rs. 40000

To find : Income of family 'd' = ?

Solution :

$\dfrac{39000+45000+28000+d}{4}=40000\\\\112000+d=40000\times 4\\\\112000+d=160000\\\\d=160000-112000\\\\d=48000$

Hence, the income of family d is Rs. 48000.