Question

Average income of 50 family is rs 3000 of these average income of 12 familys is rs 1800. find out the average income of remaning family.

Answer 1

Average income of 50 families =3000
Total income of 50 families=3000×50= 150000
Average income of 12 families =1800
Total income of 12 families= 1800×12 =21600
Total income of remaining 38 families =150000-21600 =128400
Average income of remaining 38 families = 128400/38 = 3378.94