Question

Se umcapitalde R$3.100,00 resultou, ao fimde 2meses e 20 dias, nummontante deR$3.348,00 aoser aplicado a juros simples, qual a taxamensal?

Answer 1

2m e 20d=80d
i=j*100/C/t

i=3348-3100*100/3100/80*30
i=248*100/3100/80*30
i=24800/3100/80*30
i=8/80*30
i=0,1*30
i=3
Resposta: Taxa de 3%a.m.

Answer 2

2m e 20d=80d
i=j*100/C/t

i=3348-3100*100/3100/80*30
i=248*100/3100/80*30
i=24800/3100/80*30
i=8/80*30
i=0,1*30
i=3


Resposta : taxa de juros de 3% ao mês