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

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 gre 请写出过程和原因,1、The radius and circumference of circle P are r and c respectively.r/c 1/32、The circumference of circle s The diameter of circle s我的理解是,r 求助一道PREP 数学DS题...If r and s are positive integers,is r/s an integer?(1) Every factor of s is also a factor of r.(2) Every prime factor of s is also a prime factor of r.但我觉得AB是一个道理,都不应该选啊...犯迷糊,.. GRE PP2数学一题提问~题目是这样的： A rectangular game board is composed of identical squares arranged in a rectangular array of r row and r+1 columns. The r rows are numbered from 1 through r, and the r+1 comlumns are numbered from 1 thr GRE猴哥112数学难题 40题if n is an integer and 99< n的平方 GRE SECTION 47 7IF a and b are positive and 7a-5=2.what is the greatest possible of ab?10 为什么? 问几道SAT概率数学题没学过高中概率,希望讲的详细一些.1.If p,r,m,n,t and s are six different prime numbers greater than 2,and n=p*r*s*m*n*t,how many positive factors,including 1 and n,does n have?2.If someone throws a dice twice,o 求问一道GRE数学 绿皮书 109页 第6题n is an odd integer,and S is the finite sequence of consecutive integers 1,2,3,4.n .然后Column A 是 the number of terms of S that are odd Column B 是The number of terms of S that are even. Gre数学. 三道GRE数学英语1） x and y each represent single digits in the decimal 4.3xy8.When the decimal is rounded to the nearest hundredth,the result is 4.36. A x>5 B X<5 C x=5 D不能确定 希望能翻译此题 2） P,Q,and R are distinct 紧急!12月考 20135月SAT数学If the circumference of a cir le is doubled when its radius r is increased by 4 inches, what is the value of r, in inches?3y=2x-6 y=1-cxIn the equations above,x and y are variables and c is a constant. If no ordered 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 求解一道GMAT OG if r and s are positive integers,can the fraction r/s be expressed as a decimal with only a finite number of nonzero digits?(1) s is a factor of 100(2) r is a factor of 100 If you are my one and it's sunny,if you are 德语的阅读题这些怎么做Lesen.Lesen Sie die zwei Datingprofile und sagen Sie,ob die Sätze richtig [R] oder falsch [F] sind.Read the two dating profiles and mark if the statements below are correct [R] or false [F].(12 Punkte)Eleganter V 根据句意和首字母提示完成单词.No t in the library.Look!The dog is b( )the door.A n( )helps thedoctors and patients.(病人）If you are hungry ,you can go to a r( ).Do you want to be a r( )in a TV station?I s( )have lunch at school.Jacki 英语翻译bidding and proposals are usually solicited if the client is fundamentally interested in the studio's work.