[GRE数学]If -m/19 is an even integer,which of the following must be true?问m是什么数.给出五个选项,分别是 A:negative number（负数）,B:positive number（正数）,C:prime number（质数） ,D:odd integer（奇数） ,E:even integer

[GRE数学]If -m/19 is an even integer,which of the following must be true?问m是什么数.给出五个选项,分别是 A:negative number（负数）,B:positive number（正数）,C:prime number（质数） ,D:odd integer（奇数） ,E:even integer GRE猴哥112数学难题 40题if n is an integer and 99< n的平方 还是不太明白ssat数学if m is a positive integer,and if 3+16/m is an interger less than 19,which of the following must be true of A:m=19,B:m is even,C:m=16,D:m is a prime number E:m is a multiple of four 但我觉得C是正确的,只不过不 【GRE数学】In the figure above,if Point T is 6cm from every point on arc PQ and from every poiIn the figure above, if Point T is 6cm from every point on arc PQ and from every point on arc RS, what is the sum of the ares, in cm^2, of reagion PQT a 一道GRE数学In a list of numbers,the first number is 3,the second is 4,and each subsequent number is the sum of all the proceeding numbers in the list.If the 20th number in the list is x,what is the 25th number in the list?A 7x B 16x C 32x D 35x E Gre数学. 提问GRE数学题1.If M is the least common multiple of 90,196,and 300,which of the following is not a factor of (A)600 (B)700 (C)900(D)2100 (E)4900我能算出M=2^2x3^2x5^2x7^2,但不知如何算出factor of M；另外,为何每个质数取较大 陈向东 最新GRE数学预测模拟试题4第22题If a is increased by 25% and b is decreased by 25%,the resulting numbers will be equal.What is the ratio of a to 这里的resulting numbers是什么意思?a和b是怎样的相互关系? GRE数学：If r and s are positive integers,each greater than 1,and if 11(s-1)=13(r-1),which is the least possible value of r+s?A,2 B,11 C,22 D,24 E,26 提问几道GRE数学!急!都是绿皮上的,本人数学不大好,请尽可能详细解释,谢谢!180.36If 2/3 of the number of women attending acertain dance is equal to 1/2 the number of men attending, what fraction ofthose attending are women?A.2 【GRE数学】如图 19题 GRE SECTION 47 7IF a and b are positive and 7a-5=2.what is the greatest possible of ab?10 为什么? 最新GRE数学预测模拟试题（三）第一题a number is a palindrome if it reads exactly the same from right to left as it does from left to right, for example 959 and 24742 are palindromesA: the probaility that a three dight number chosen at if that is a GRE数学概念113....2/3 as many A as B:A=2/3*B ...twice as many...A as B:A=2*B 14.a if only b:b->a 13 语法上怎么理解 GRE数学考多久 gre数学难不难 gre数学低怎么办