Question

6. Вкладчик положил в банк 2000 руб, а через год получил 2160 руб. Под какой процент годовых были положены деньги ? а) 14%; б) 8%: 6%; г) 10%. ​

Answer 1

Ответ:

Правильный ответ вариант б)8%

2000руб - 100%

2160руб - х%

х=2160*100/2000=108%

И чтоб найти сколько % возрастал просто от 108% отнимаем 100% получает 8%

Answer 2

Calculating Annual Interest Rate

To calculate the annual interest rate, we can use the formula for simple interest:

Simple Interest = Principal × Rate × Time

In this case, the principal amount is 2000 rubles, the amount received after one year is 2160 rubles, and the time is 1 year. We can rearrange the formula to solve for the rate:

Rate = (Interest / Principal) × (100 / Time)

Substituting the given values: Rate = ((2160 - 2000) / 2000) × (100 / 1)

Calculation

Let's calculate the rate using the given values:

Rate = ((2160 - 2000) / 2000) × (100 / 1) = (160 / 2000) × 100 = 8%

So, the annual interest rate at which the money was deposited is 8%.

The correct answer is therefore б) 8%.