Question

Um capital de R$ 28.000,00, aplicado durante oito meses, rendeu juros de R$ 11.200,00. Determinar a taxa anual? Resposta:

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.