For a credit amount of 120,000 currency units with a two-year term and monthly instalments, at a yearly interest rate of 12% the level of interest after 1.5 years is required.
一笔按月偿还的总额为 120,000 货币单位的贷款，偿还期限为两年，计算利率为 12% 时 1.5 年后的利息总额。