please jawab 1 sampai 3

1. A = 2/5 B
     B = 3/2 C
     A + B = 36.000

     A = 2/5 B = 2/5 ( 36.000 - A )
       = 10.286          

   A =3/5 C
   C = 5/3 A
       = 5/3 x 10.286
       = 17.143