Question

Um capital de R$28000,00 aplicado durante 8 meses, rendeu juros de R$11200,00, Determine a taxa anual?

Answer 1

i=j*100/C/t

i=11200*100/28000/8*12

i=1120000/28000/8*12

i=40/8*12

i=5*12

i=60

Resposta: Taxa de 60%a.a.