Question

Qual o capital que aplicado a juros simples de 1,2% a.m rende $4200,00 de juros em 75 dias?
a) $114635,06
b) $115000,00
c) $115622,60
d) $114600,66
e) $140000,00

Answer 1

Aplicando fórmula dos juros simples:

$Capital = \dfrac{Juros}{taxa \times periodo}\\\\\\ Capital = \dfrac{4.200}{\frac{1,2\%}{100} \times \frac{75}{30}}\\\\\\ Capital = \dfrac{4.200}{0,012 \times 2,5}\\\\\\ Capital = \dfrac{4.200}{0,03}\\\\\\ \boxed{Capital = R\ \ 140.000,00}$

Bons estudos!