Jawabanmu

2014-03-04T15:56:25+07:00
Jawab =>
modal = (1000x450) + 15000
         = 477.000
harjul  = 835 x 600 + 150 x 550
         = 574.500
untung = 574 .500 - 477.000
          = 97.500
% u = 97.500/ 477.000 x100%
         = ....... %