Question

a que taxa mensal de juros simples um capital de R$500,00, aplicado durante 10 meses, produz R$150,00 de juros?

Answer 1

J=C.i.t
___
100

J=150
C=500
i=x
t=10 meses

150=500.i.10
______
100

150=5.i.10
150=50i
50i=150
i=3

taxa mensal: 3%