Question

A que taxa de juros um investimento de R$ 8.000,00 acumulará R$ 10.000,00, daqui a 5 anos ?

Answer 1

i=M-C*100/C/t
i=10000-8000*100/8000/5
i=2000*100/8000/5
i=200000/8000/5
i=25/5
i=5
Resposta: 5%a.a.