下面为大家总结了最新的gre猴哥数学难题。有很多gre考生对gre数学考试十分苦恼，其实最有效的方法就是多练习，把数学基础知识记牢，这样才能在考试中对答如流。而gre数学考试中也会出现一些难题，想拿高分也十分不容易。

　　91.If 72.42= k[24+(n/100)], where k and n are positive integers and n < 100, then k + n =_____

　　A.17    B.16   C.15   D.14   E.13

　　92. In how many of the ten years from 1965 through 1974 was electricity use of Company T between 25,000 and 30,000 kilowatt-hour for at least one month?