[計量] 請教一題計量
112個數學難題中的第65題
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 pays a mortgage-insurance premium equal to
3 percent of the mortgage amount. What is the maximum FHA mortgage,
if any, a buyer can obeain if the buyer has only $6,000 available
for the down payment and insurance premium?
ANS：78,125
請問是怎麼算的? 查了字典還是不會算
另外想請問intercept應該是沒有負的吧?
CAT test 6 中的第 3 題 是答案給錯了嗎?
謝謝^^
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