Resposta :
j=c.i.t
3000=40000.3
3000=120000
i=3000/120000
i=2,5%
Tirando a prova
2,5.3.40000/100=3000
3000=40000.3
3000=120000
i=3000/120000
i=2,5%
Tirando a prova
2,5.3.40000/100=3000