Question

qual a taxa de juros simples que aplicada durante 16 meses, produz um total de juros igual a 38% do valor principal

Answer 1

J=CIT/100
I=100J/CT
J=0,38C
T=16/12=1,33

I=100X0,38C/CX1,33
I=38/1,33
I=28,57%