3.A printer numbered consecutively the pages of a book, beginning with 1 on the first page. In numbering the pages, he printed a total of 189 digits.

　　The number of pages in the book

　　100

　　答案：B

　　4. m,p, and x are positive integers and mp=x.

　　m

　　x

　　答案：D

　　5.n=7*193

　　The number of distinct positive factors of n

　　10

　　答案：B

　　6.Seven is equal to how many thirds of seven?

　　A.1/3

　　B.1

　　C.3

　　D.7

　　E.21

　　答案：C

　　7.How many positive integers less than 20 are equal to the sum of a positive multiple of 3 and a positive multiple of 4?

　　A.2

　　B.5

　　C.7

　　D.10

　　E.19

　　答案：D

　　8.5/2 percent of 1120

　　22*7

　　答案：C

　　9.What is the remainder when 63 is divided by 8?

　　A.5

　　B.3

　　C.2

　　D.1

　　E.0

　　答案：E

　　每道题目都是关于gre数学考试的典型题目，考生可以根据题目来复习知识点，这样更有针对性。