rnn
Hi, I am still not clear why option D is incorrect. Kindly help please
As described in
this post, the use of "to" ("to almost $24,000") illogically implies a range of values ("... by an average of $8,000... to $24,000"). That makes it sound as though the amount of lag is, on average, between $8,000 and $24,000. But that's not the intended meaning.
We are told "that the salaries of teachers continue to lag far behind [the salaries] of other college-educated professionals". By how much do the salaries of teachers lag behind the salaries of other college-educated professionals? 1)
By an average of nearly $8,000 a year
at the start of their careers and 2)
by almost $24,000 a year
by the time they reach the age of 50.
At time 1, the salaries of teachers lag behind BY some amount (an average of nearly $8,000 a year). At time 2, the salaries of teachers lag behind BY some other amount (almost $24,000 a year). 1) and 2) both answer the question, "By how much do the salaries of teachers lag behind?". So each needs to start with "by", as in choice (E).
There also might be another issue with (D), if in fact there has been a typo ("...by an average of
UP TO nearly $8,000..."). If anyone encounters this question on a practice test, please confirm the exact wording of choice (D) and/or post a screeenshot.
Connor1396
mikemcgarry daagh(E) those of other college-educated professionals—by an average of nearly $8,000 a year at the start of their careers
, and by almost $24,000
I understand that this is the best option. Just had a doubt as to how the comma before and is right. Neither after and there is a independent claus, not there is a list of 3 or more items.
Thanks in Advance
As we've mentioned in other threads, the "rules" governing comma usage can be subtle and subjective, so you don't want to be too rigid when debating whether a comma is appropriate. You won't run across many GMAT questions that explicitly test whether the presence or absence of a comma is correct, so it's best to find more concrete reasons to eliminate answer choices. For more on punctuation on the GMAT, check out
this video.
those of other college-educated professionals—by an average of up to nearly $8,000 a year at the start of their careers to almost $24,000 less <-- exact wording of choice D( encountered in GMAT Prep 5).