Respostas

  • Usuário do Brainly
2014-04-11T12:07:17-03:00
96 dag= 960 g 

30 h --------960g 
x-------------576 g 
Inv. 

30 h--------576g 
x-----------960 g 

x= 30.960 /576=28800/576 = 50 h 

Náufragos: 
50-30=20 h