Anyone looking for a study partner/group? I'm in the San Fernando Valley and am planning on taking the GMAT in August.

I also used backsolving, but knowing the divisibility rule would have been much faster. I would've used the divisibility rule if I didn't doubt myself due to 9 having the same divisibility rule.

How did u get 125-0.25p???? Out of 100 Newspapers, p were sold @1 dollar each raising a revenue of $p and (100 - p) were sold @ 1.25 dollar each raising a revenue of $(125 - 1.25 p). Thus total revenue = $(p + 125 - 1.25 p) = $(125 - 0.25 p). Sorry, this may be annoying, but I'm still not seeing wh...

great post...any way you could pm me on how to get the files you downloaded? I'm not great with torrents; I usually get files from forums where people post on rapidshare, megaupload, etc. Any help is appreciated!

x^y + x^y = can be an odd integer. We know that x^y is odd from the first statement and adding two odd numbers can result in an even number.

y/x could be false depending on what numbers you choose.

The answer would be D - II and III only.

I think the answer is B. (1) is insufficient because it gives you two answers - 4 or 9. (2) only gives you 4 as a viable answer choice.

I did this the same way as described by the above posts, but looking at the answer choices it looks like 99 could be the only choice. The ratio of 7:2 indicates that the original number would have to be divisible by 9. 99 is the only answer choice on the list that fits the original ratio.