A recent United States Census Bureau report shows that there are more

A recent United States Census Bureau report shows that there are more than three times as many households where the children and grandchildren are living in their grandparents' home as compared to households where the grandparents are living in their children's or grandchildren's home.

Remember:
1) Correct Idioms is : as X ... as Y ...
2) "compared to" can NEVER be used together with another comparison word (more, less, twice, half, three times...).

Here we have "three times as many as...", so we CANNOT include "compared to", because we're then saying the same thing twice - REDUNDANCY.

(A) as compared to households where the --> Wrong: wrong usage of "compared to" - as explained above redundant

(B) as there are households where the -->correct meaning and comparison: as many households where as there are households where

(C) as those whose -->Wrong meaning: as many household where as those (households) whose grandparents
If you say "households whose", the households have grandparents. If you say "households where", then the households are merely the place in which the living arrangements exist.


(D) than compared to those where the --> i) Wrong idiom: as many household than compared ii) wrong usage of "compared to"

(E) than there are whose -->Wrong idiom: as many household than

A recent United States Census Bureau report shows that there are more than three times as many households where the children and grandchildren are living in their grandparents' home as compared to households where the grandparents are living in their children's or grandchildren's home.

(A) as compared to households where the -- redundancy - "compared to" can NEVER be used together with another comparison word (more, less, twice, half, three times...).
(B) as there are households where the - Correct
(C) as those whose -- The word "those" is a pronoun, and needs an antecedent. The structure of this comparison dictates that the antecedent for "those" be "households"... and then you follow that pronoun with the possessive "whose". So, do the households have grandparents?

Or is the sentence merely comparing households where the living arrangements are different?

If you say "households whose", the households have grandparents. If you say "households where", then the households are merely the place in which the living arrangements exist.

(D) than compared to those where the - idiom issue - as many ... as
(E) than there are whose - idiom issue - as many ... as

Option B -->
The second "there are..." isn't strictly necessary. Without it, you'd have a sentence with the same structure as "In most countries, there are as many men as women."

Its primary value lies in making the sentence easier to read.
This is not an issue of right and wrong"”it's a style issue"”and so it will never be dispositive in a real problem. Still, you should know it's a thing.
Try writing out the entire sentence without the second "there are".

The same principle is at work behind the inclusion of many other technically unnecessary things, e.g., the use of Just as xxxxx, so yyyy rather than just "Just as xxxxx, yyyy".

Answer B

A recent United States Census Bureau report shows that there are more than three times as many households where the children and grandchildren are living in their grandparents' home as compared to households where the grandparents are living in their children's or grandchildren's home.

(A) as compared to households where the "there are as many X as compared to Y" is incorrect - the correct idiomatic usage is "as many X as Y". Eliminate.

(B) as there are households where the Correct answer - error in (A) is corrected and no new errors are introduced.

(C) as those whose "those" refers to households. Hence, "those whose grandparents" is incorrect since households cannot have grandparents. Eliminate.

(D) than compared to those where the "as many X..." must be followed by "as", not "than". Eliminate.

(E) than there are whose Same error as in (D). Eliminate.

Hope this helps.

A recent United States Census Bureau report shows that there are more than three times as many households where the children and grandchildren are living in their grandparents' home as compared to households where the grandparents are living in their children's or grandchildren's home.

=> B is correct (as ... there are)

A recent United States Census Bureau report shows that there are more than three times as many households where the children and grandchildren are living in their grandparents' home as compared to households where the grandparents are living in their children's or grandchildren's home.

(A) as compared to households where the -> compared to is redundant. We have "more than" already in non-underlined part. Incorrect.
(B) as there are households where the -> as many x as y, x and y are parallels too. Let's keep it.
(C) as those whose -> those refers whom. I don't see a clear meaning here. Incorrect.
(D) than compared to those where the -> As many x that y is incorrect idiom form. Easy pick. Incorrect.
(E) than there are whose -> Same as D. Incorrect.

So, I think B.

A recent United States Census Bureau report shows that there are more than three times as many households where the children and grandchildren are living in their grandparents' home as compared to households where the grandparents are living in their children's or grandchildren's home.


sine we are comparing the diffreneces in households in terms of children or grandchildren living in grandparents house compared to households where grandparents live at children or grandchildren house , eliminate C ,D,E as in gmat it clearer to use the actually referent households rather than pronouns and eliminate A for parallelism error

answer b