the solution is beautiful, but it also relies on the fortuitous fact that the lines QP and PR are perpendicular. you didn't explicitly acknowledge this fact in your otherwise wonderfully detailed solution, so i'm not sure you're aware of it; the only reason that the formula (1/2)(b)(h) works in thi...

the solution is beautiful, but it also relies on the fortuitous fact that the lines QP and PR are perpendicular. you didn't explicitly acknowledge this fact in your otherwise wonderfully detailed solution, so i'm not sure you're aware of it; the only reason that the formula (1/2)(b)(h) works in thi...

Hi Ron/Stacey, Isn't there also a meaning issue with C? The original sentence tries to convey a meaning that "one-fourth of the stores have demonstrated poor sales and those stores would be closed". Choice C tends to state that "one-fourth of the stores would be closed because the co...

let us know if there are any further questions on this one.. I am confused between option A and option E too. I went for option A , cos option E had modifier issue as to , "In a two-year course designed for undergraduate students" is modifying Feynman as opposed "introduction to mode...

Along with the pronoun error in option E , is there also a tense error ("have become" and "revealed") ? Was wondering if simple past ( revealed) works fine here , cos this is a general observation made about the author and his books. So I thought present tense makes sense. Just t...

I dont understand in sentence d why we dont write : "Jazz pianist and composer , Thelonious Monk" or " The Jazz pianist and composer Thelonious Monk". this is a special idiom. if you preface someone's name with a noun describing their occupation (or other word describing what th...

Other than "has" , is "including" in B incorrect ? It seems to refer to european languages as opposed to "differences in ". Just checking .

Thanks!

I guess I'm trying to understand whether we can 'assume' that 'their' refers to 'cars' on this and other such GMAT questions since a pronoun usually refers to the noun immediately preceding it. Thanks. nooooooo no no no. that's a sure route to disasterville, or, at the very least, a way to make pro...

tim Wrote:normally an -ing word that follows a comma is an adverbial modifier, but this is not an absolute rule, and i certainly would not eliminate B on that issue alone..

Thanks Tim !

that's exactly what the pronoun error is in B. a literal interpretation of B changes the meaning to something nonsensical.. Oh Alright ! As per previous posts , I thought it is only the pronoun ambiguity that was an issue with option B. So wanted to confirm on the meaning change as well. Got it. Th...

Along with the pronoun error in option E , is there also a tense error ("have become" and "revealed") ? Was wondering if simple past ( revealed) works fine here , cos this is a general observation made about the author and his books. So I thought present tense makes sense. Just ...

The population of Megacity, a sprawling metropolis in Remsland, has grown at a fairly steady rate for over a century. A hundred years ago, poor sanitation in the city caused high mortality rates among the city's inhabitants, and what fueled the population increase was immigration from rural village...

let me make this clear again: there is NO pronoun ambiguity issue with B. it is absolutely clear what the pronoun is referring to, and it is referring to the wrong thing. that's why B is wrong, not because of ambiguity.. In saw the below statement in the first comment Ron mentions - "in the pr...

As per my understanding --- Option "A" doesnt fully answer our question about why the city's population growth has not changed ( increased). All it says here is - hundred years ago deaths due to sanitation was greater than deaths due to traffic - and currently death due to traffic is grea...

For this one, IMO, Since 'hearings' is plural, so we can eliminate A(was), C(was) and E(was) Then we read B&D, and D is awkward in saying 'then also later', so, got B I reckon this method is pretty fast^^ correct on (c) and (e); incorrect on (a). (a) is a backward construction; the subject of &...