Question

Qual a taxa de juros simples que, aplicada ao capital de R$123.000,00, durante 18 meses, produz um montante de R$344.400,00?

Answer 1

i=j*100/C/t

i=344400-123000*100/123000/18

i=21400*100/123000/18

i=22140000/123000/18

i=180/18

i=10

Resposta: Taxa de 10%a.m.