Questions: FONSECA. R. F. Matemática Financeira. Patos de Minas. UNIPAM, 2016. Tendo ciência de como proceder os cálculos dos juros simples e sabendo que Mariana promoveu a captação de um recurso financeiro com a sua colega Flávia no valor de R 12000,00 e prometeu efetuar o pagamento em 4 meses a uma taxa de 2% ao mês de juros simples, determine o valor total a ser pago de juros na operação. A) R 96,00 B) R 9600,00 C) RS 960,00 D) RS 12096,00 E) RS 12960,00

Solution Steps

To solve this problem, we need to calculate the simple interest using the formula: Interest = Principal × Rate × Time. Here, the principal amount is R$ 12,000, the rate is 2% per month, and the time is 4 months. After calculating the interest, we add it to the principal to find the total amount to be paid.

We are given the following values:

• Principal amount (\(P\)) = R\$ 12,000
• Interest rate per month (\(r\)) = 2% = 0.02
• Time period (\(t\)) = 4 months

The formula for simple interest is: \[ I = P \times r \times t \] Substituting the given values: \[ I = 12000 \times 0.02 \times 4 = 960 \] Thus, the interest amount is R\$ 960.

The total amount (\(A\)) to be paid is the sum of the principal and the interest: \[ A = P + I = 12000 + 960 = 12960 \]

Final Answer