Question

Вклад, вложенный в сбербанк два года назад, достиг суммы, равной 13125 руб. Каков был первоначальный вклад при 25% годовых?

Answer 1

На первый месяц? это это от месячной платы зависит ? или от годовой?

Answer 2

Calculation of the Initial Deposit

To calculate the initial deposit, we can use the formula for compound interest:

A = P(1 + r/n)^(nt)

Where: - A is the final amount (13125 rubles in this case) - P is the principal amount (the initial deposit we want to find) - r is the annual interest rate (25% in this case) - n is the number of times interest is compounded per year (assuming it is compounded annually, n = 1) - t is the number of years (2 years in this case)

Let's substitute the given values into the formula and solve for P:

13125 = P(1 + 0.25/1)^(1*2)

Simplifying the equation:

13125 = P(1 + 0.25)^2

13125 = P(1.25)^2

13125 = P(1.5625)

Now, let's solve for P:

P = 13125 / 1.5625

P = 8400 rubles

Therefore, the initial deposit was 8400 rubles