问一道GMAT数学?If 500 is the multiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y,which multiple of 100 is closet to x+y?(1) x+y(2) y

问一道GMAT数学?If 500 is the multiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y,which multiple of 100 is closet to x+y?(1) x+y(2) y 求问一道GMAT数学DS题If the integers a and n are greater than 1,and the product of the first 8 positive integers is a multiple of a ^n ,what is the value of a?(1) a ^n =64(2)n=6求问题翻译跟答案解析 问一道GMAT的DS题if n is a positive integer,what is the tens digit of 1.the hundreds digit of 10n is 62.the ens digit of n+1 is 7 gmat数学DS部分 prep上的一道题,gmat数学DS部分 prep上的一道题,也看不到答案.177.If x and y are positive integers,what is the value of xy (1) The greatest common factor of x and y is 10.(2) The least common multiple of x and y is gmat prep数学prep里有这样一道数学题.for all the positive integers m, m(这个m外面有方框)=3m if m is odd, m(方框)=1/2m if m is even. Then which of the following is equivalent to 9（方框）*6（方框）?答案包括：81,54,36,27 问一道GMAT的DS题a school administrator will assign each student in a group of n students to one of m classrooms. if 3 一道GMAT数学DS题Each of the 25 balls in a certain box is either red, blue or white and has a number from 1 to 10 painted on it. If one ball is to be selected at random from the box, what is the probability that the ball selected will either be w 求问一道GMAT数学题!貌似挺简单= =就是卡在这了If 2, x, y, and z are different positive integers whose average (arithmetic mean) is 10, what is the greatest possible value of z ?A. 10B. 24C. 34D. 36E. 40 GMAT数学一道Q10:A set of numbers has the property that for any number t in the set,t + 2 is in the set.If –1 is in the set,which of the following must also be in the set?I-3II1III5A.I onlyB.II onlyC.I and II onlyD.II and III onlyE.I,II,and III 一道gmat数学概率题1≤n≤99,what is the possibility of n(n+1) is a multiple of 求问一道gmat数学DS题求x根号下(x+5)(x-4)>10根号下(x+5)(x-4)<11 问一道GMAT数学概念把29/4改变成一个七又四分之一的方法：A.divide the denomimoator into the numerator; the result is the whole number of the mixed number.B.Put the remainder from step A over the denominator; this is the fractional GMAT数学求解If x, y, z areinteger and xy+z is an odd integer, is x an even integer?1) xy+xz is an even integer2) y+xz is an odd integer GMAT一道数学题（data sufficiency）If l1,l2 and l3 are lines in a plane,is l1 perpendicular to l3?(1)l1 is perpendicular to l2 (2)l2 is perpendicular to l3是不是错了? GMAT一道数学题, GMAT的一道题, 一道GMAT的数学题 高分求一道GMAT数学题.The rate of a chemical is directly proportionate to the square of A and inversely to B,if B increase 100%,what is the change of percentage of