Question

A taxa mensal, de R$700,00 produziu o montante de R $ 855,00, durante 4 meses no regime de juros simples?

Answer 1

M=C+J
855=700+J
J=855-700
J=155,00

J=C.i.T
155=700.i.4
155=2800i
i=155/2800
i=0,05535