increased vs increasing?

"For some birds, the sense of smell appears to play a role in navigation, since pigeons with surgically removed olfactory nerves have been found to have increased difficulty in homing." Can someone please explain why "increased" is used as opposed to "increasing"? Could...

singular or plural?

The following 3 I know are singular: 1) The group is going to the store. 2) The number is... 3) The New Yorker is going to the store. What about this one: 4) The New Yorkers IS/ARE going to the store. ?? "New Yorkers" sounds like a group, which is singular, but it doesn't sound right. I kn...

So is the following statement true: "when a sentence contains a word that describes an action which occurred prior to another action it necessary to use the "to be" verb in past perfect tense." Because, if so, this violates what I learned at The Princeton Review, which is that &q...

So everyone that got 60 is correct, and there are clearly several different methods to get the correct answer. Below is a snapshot of how I got to the answer using the rate box. The first step, like all wordy math problems with too much information, is to organize it as clearly as possible. We know ...

dashes in sentences?

I just read a very inspirational post about someone who conquered the GMAT. In his post, he wrote about dashes in sentences - in the underlined portion. Does anyone know the rules that GMAC expects us to know regarding the use of dashes in sentence correction?

Really inspirational! Thanks for the great tips and from someone who is currently EXTREMELY nervous about the test, it helps to know that you won. Congrats!

OG PS 106

When positive integer X is divided by positive integer Y, the remainder is 9. If X/Y = 96.12, what is the value of Y? (A) 96 (B) 75 (C) 48 (D) 25 (E) 12 Ok - I don't remember the secret my princeton review teacher, Brian taught us on how to do these. I do remember a little nugget of esoterica taught...