Some 狗狗 from feb 8

soddysong

Here are some questions that I had..

l1^st number is 2, the 2^nd is 3.. and the preceding number is the sum of all the numbers that preceded it. The questions asks what is the value of 24^th divided by 22^nd ?


2, 3, 5, 10, 20, 40, 80,….


lDS一条数轴上，没给0的位置。上面从左到右为M,N,X,Y,Z，问他们的积是否为正。

条件一，MN>0.

条件二，yz<0.

解：条件一，可知m、n同号，不可判断。

条件二，可知y、z异号，又由于y在z的左边，可知y<0, z>0，即可知m、n、x、y均小于零，则mnxyz>0 ，可判断。

所以选B



l给了一个方程y=(x+1）（x-1）^2 有图，和X轴有2个交点。问y=(x+1）（x-1）^2 +2和X轴有几个交点

我选1个









l3^2003 divide by 5. what is the remainder?


l5000 invest in 2 years. 1^st year 5% compound. 2^nd year 5% compound. By how much is the profit of 2^nd year greater than that of 1^st year?


lIn 1996, Profit of product C takes half of company D’s total profit. In 1997 profit of product C increases 30% while other profits remain the same. Question asks what is the percentage of product C to company D’s total profit in 1997?


For Reading,  I had
Beetles Fossils

Good Luck everyone !

wqsmonica

rainbowmanutd

LZ之遇到一篇阅读JJ吗

EMINEM830505

感谢楼主！

ann110726

这个楼主很低调~

sabrinazhang

for reading, u had???what kind of question?

Beetles Fossils反应气候变化 考古：http://forum.chasedream.com/GMAT_Math/thread-438522-1-1.html?extparms=ThreadCatalogID%3d48%26page%3d1