John deposits $2,000 in the first year, $800 in the second year and $600 in the third year to WMW Bank with an interest rate of 12%. Sky deposits $3,800 in the third year to the same bank. At the end...

John deposits $2,000 in the first year, $800 in the second year and $600 in the third year to WMW Bank with an interest rate of 12%. Sky deposits $3,800 in the third year to the same bank. At the end of the fifth year, Sky and John have the same amount of money in their accounts. What is the interest rate for Kuzey?