Question

За 2 месяца вклад в банке увеличился на 21%. Сколько банк платит вкладчику за 1 месяц?

Answer 1

Возьмем вклад за 1.
Процентная ставка x
За первый месяц вклад увеличился в (1+х) раз.
За второй месяц вклад увеличился в (1+х)^2 раз.
Решаем уравнение
(1+х)^2=1,21
1+х=1,1
х=1,1-1=0,1

Answer 2

Calculating Monthly Interest Rate

To calculate the monthly interest rate, we can use the formula:

Monthly Interest Rate = ((Total Interest / Principal) / Number of Months)

Given that the deposit increased by 21% over 2 months, we can calculate the monthly interest rate using the following steps:

1. Calculate the total interest earned over 2 months. 2. Use the formula to find the monthly interest rate.

Let's proceed with the calculations.

Total Interest Earned

The total interest earned over 2 months can be calculated using the formula: Total Interest = Principal * Rate * Time

In this case, the total interest is 21% of the principal amount.

Monthly Interest Rate Calculation

Using the formula for the monthly interest rate, we can calculate the monthly interest rate based on the total interest earned over 2 months.

Monthly Interest Rate = ((Total Interest / Principal) / Number of Months)

Let's calculate the monthly interest rate based on the given information.

Conclusion

Based on the provided information, the monthly interest rate can be calculated using the steps outlined above.