Question

解答并翻译两道gre 数学题

To obtain an FHA mortgage for $50000 or more, the home buyer must have a down payment equal to 4 percent of the first $25000 of the mortgage amount and 5 percent of the portion in excess of $25000. At settlement the buyer pay a mortgage insurance premium equal to 3 percent of the mortgage amount. What is the maximum FHA mortgage, if any a buyer can obtain if the buyer has only $6000 available for the down payment and insurance premium?

A) $62500 B) $71875 C) $78125 D) $12500 E) THe home buyer cannot obtain an FHA mortagage

A certain money market account that a balance of $48000 during all of last month earned $360 in interest for the month. At what simple annual interest rate did the account earn interest last month?

A 7% B 7.5% C 8% D 8.5% E 9%

该考了数学还是一塌糊涂。期待解答。先谢过了！

Answer 1

1.要获得美联邦购房贷款50.000美金的条件是，25000部分的利息是4%，超出 部分是5%，房贷申请公司收3%佣金。某人手上有6000美子，那么他能获取下面那一金额的贷款呢？
2.如果在某钱庄存款48000美子，月获利息360美金，那利率是多少呢？

先说第一道题。
这里有三个利息比例：一。贷款金额是25.000美金收取4%
二。超出部分呢收5%
三。为你搞房贷的公司收取3%的贷款佣金

随便选一个，比如 总数是71.875 贷款公司收3%是2.156，25
超出部分收5%是2.343，75
25.000收取4%是1.000
--------------------------
合计 5.500
计算结果是差500. 明显就是78.125了。

第二题：一个月的利息是360，那12个月是4320.用4320除总的存款得00，9.那就是9%了。