Hi Abhijit, The logic of the proposed rail expansion to ease congestion is as follows: (1) Expand rail system --> (2) People use the rail instead of driving on the highways --> (3) Less highway congestion. On the other hand, the argument (final sentence) states that something in the poll results ind...

Hi Rastis, Since each term = (previous term)(constant), we can compare the first two terms and see that the constant is 2, since 4x = (2x)(2). So, each term is simply a power of 2 greater than the one before: First term = (2^1)x Second term = (2^2)x Third term = (2^3)x ... 600th term = (2^600)x Let ...

Great question, gettingwanderlust! To make a comparison between two things that are equal (in this case, the time the civilizations flourished), the GMAT will often use “ the same… as… � or “ as… as… � For example: Correct: I’m the same age as my brother—we’re twins! Not only t...