数学题:王老师平均每月要付给银行多少利息

  • 时间:2020-05-09 14:38:58
  • 分类:数学世界
  • 阅读:121 次

数学题:王老师购买商品房,共要付45万元,他首期付了总价的30%,剩余部分打算申请个人住房贷款。贷款人除了要偿还向银行借的本金,还要多付给银行贷款利息。王老师打算10年还清,每个月等额偿还银行本息,经计算,王老师每个月要付给银行3689.96元,那么10年内,王老师平均每月要付给银行多少利息?(不计算利息税)

数学题解答

需贷款的金额:45×(1 – 30%)=31.5(万元)=315000(元)

10年一共还了多少钱?3689.96×12×10=442795.2(元)

所还的利息是多少元?442795.2-315000=127795.2(元)

平均每月还的利息是多少元?127795.2÷12÷10=1064.96(元)

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