Question

If 10%of 'a' income= 15% of b's income = 20%of c's income .of sum of their income is 7800 then b's income is

Answer 1

given (10/100)*a = (15/100)*b = (20/100)*c

i.e. 0.1*a = 0.15*b = 0.2 * c , therefore a= (0.15/0.1) *b and c = (0.15/0.2) *b

and a+b+c = 7800

(0.15/0.1)* b + b + (0.15/0.2)* b = 7800

solving for b we get

b = 2400