Question

QUAL A TAXA DE JUROS SIMPLES , DE UM CAPITAL DE R$ 200,00 APLICADO POR 8 MESES E ACUMULA UM MONTANTE DE R$ 360,00 ?

Answer 1

C = 200.00
t = 8 m 
M = C + j = 360.00
j = 360.00 - 200.00
j = 160.00 

160 = ( 200 *  8 * i )
160 = 1600 i
i = 160/1600
i = 0.1 
i = 0.1 * 100 = 10% a m ***

Answer 2

i=j*100/C/t

i=360-200*100/200/8
i=160*100/200/8
i=16000/200/8
i=80/8
i=10
Resposta: Taxa de 10%a.m.