Question

Вкладник поклав до банку 3400грн а через рік отримав 3638грн.Який відсоток річних виплачуе банк​

Answer 1

3400 грн — 100%

3638 грн — х%

х = 3638 · 100 : 3400 = 363800 : 3400 = 107%

107% - 100% = 7% — річних виплачує банк вкладнику.

Відповідь: банк вкладнику виплачує 7% річних.

Answer 2

Calculating Annual Interest Rate

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

Simple Interest (I) = Principal (P) x Rate (R) x Time (T)

Where: - I = Interest earned - P = Principal amount (initial deposit) - R = Annual interest rate (in decimal) - T = Time in years

We can rearrange the formula to solve for the annual interest rate (R):

R = I / (P x T)

Given: - Principal amount (P) = 3400 грн - Amount received after one year = 3638 грн

We can calculate the interest earned (I) using the formula:

I = Amount received - Principal

I = 3638 - 3400

I = 238

Now, we can calculate the annual interest rate (R) using the rearranged formula:

R = I / (P x T)

R = 238 / (3400 x 1)

R ≈ 0.07

Conclusion

The annual interest rate the bank pays is approximately 7%.