Re: [計量] 請問2題數學
看板GRE (GRE入學考試)作者Ramiel (It's only for now)時間18年前 (2008/06/09 19:51)推噓1(1推 0噓 0→)留言1則, 1人參與討論串2/4 (看更多)
※ 引述《K0BEBRYANT (GO LAKERS)》之銘言：
: To obtain an FHA mortgage for $50,000 or more, the home buyer must have
: a down payment equal to 4 percent of the first $25,000 of the mortgage amount
: and 5 percent of the portion in excess of $25,000. 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 $6,000 available for the down payment and insurance premium?
: (A) $62,500
: (B) $71,875
: (C) $78,125
: (D) $125,00
: (E) The home buyer cannot obtain an FHA mortgage
: 答案是C
0.03x + 0.05(x-25,000) + 25,000*0.04 = 6,000
x = 78,125
: ----------------------------------------------------------------------------
: A certain money market account that had a balance of $48,000 during allof
: last month earned $360 in interest for the month. At what simple
: annualinterest rate did the account earn interest last month?
: (A) 7%
: (B) 7.5%
: (C) 8%
: (D) 8.5%
: (E) 9%
: 答案E
360/48,000 = 0.75%
12*0.75% = 9%
: help~ XD
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06/09 19:56, , 1F
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