Question

Calcular os juros simples e o montante de:
a) $500,00 a 25% a.a. por 8 meses
b) $2.200 a 30,2% a.a. por 2 anos e 5 meses.

Answer 1

J=cit,  onde J=juros simples, c= capital, i= taxa e t=tempo
M=c+j, onde M= montante

a) J=500*(25/100)*(8/12)= 250/3=83,33
M=500+83,33=583,33

b)J=2200*(30,2/100)*[2+(5/12)]= 48169/30=1605,63
M=2200+1605,63=3805,63

Answer 2

.........

500,00.....8m
25%aa=25➗ 100➗ 12=

0,0208333am✖ 500=

10,41665p.m✖ 8m=
83,33......juros ➕ 500,00cap=

583,33.....montante


2.200,00.........2,5t= 29meses
30,2aa=30,2➗ 100➗ 12m=
0,0251666p.m✖ 2200=

55,36652p.m✖ 29m=

1.605,63.....juros ➕
2.200,00.....cap=

3.805,63.....montante