One of four babies are now born to mothers aged thirty years or more

Compare with
Compare to

I think I saw this in Kaplan verbal workbook....can anyone shed light over here?

compared with is right. The comparison is between two groups of women, one older than 30 and the other younger. So D is right.

'compared to' is wrong in this case...comparing like things so use 'compar e with'.
One in four is

D it is.

compare similar nouns with compare with. Therefore, AD remain.

A is wrong because thirty years or more. More describes uncountable things like pollution. More or less pollution.

GMAT does not distinguish between compare to/with anymore.

The problem with B is that for the first arm of one it uses singular verb ‘is’ and for the second arm of one it uses ‘were’.

Hi,

The way I distinguish is whether things are 'versions' or 'totally different'

e.g.

Compared to a brick, a car is very large

Compared with Picasso, Monet is not much of an artist

Hope that helps.

Cheers,

James

7. One of four babies are now born to mothers aged thirty years or more, compared with just one of six born in 1975.
(A) of four babies are now born to mothers aged thirty years or more, compared with just one of six born
(B) of four babies is now born to a mother whose age is thirty or older, compared to just one of six babies who were born
(C) baby in four are now born to mothers aged thirty or older, compared to just one in six
(D) baby in four is now born to a mother aged thirty or older, compared with just one in six
(E) baby in four is now born to mothers aged thirty years or more, compared to just one in six

For me D is best

Because: B & C are out S-V agreement. One of babies- subject is babies so plural, one baby in four-singular
A & E are out 'More'. More must be used with than.

D. Because you can't used aged and years in the same sentences as these both mean the same. D has the most logical meaning when compared to the other options, even if personally I still find it strangely worded.

One of four babies are now born to mothers aged thirty years or more, compared with just one of six born in 1975.

(A) of four babies are now born to mothers aged thirty years or more, compared with just one of six born
(B) of four babies is now born to a mother whose age is thirty of older, compared to just one of six babies who were born
(C) baby in four are now born to mothers aged thirty or older, compared to just one in six
(D) baby in four is now born to a mother aged thirty or older, compared with just one in six ---best
(E) baby in four is now born to mothers aged thirty years or more, compared to just one in six-- 1 baby cannot be born to different mothers

compared to and compared with is not a valid elimination reason as both can be right depending on the situation

One of four babies are now born to mothers aged thirty years or more, compared with just one of six born in 1975.
(A) of four babies are now born to mothers aged thirty years or more, compared with just one of six born - more YEARS?
(B) of four babies is now born to a mother whose age is thirty or older, compared to just one of six babies who were born - WORDY
(C) baby in four are now born to mothers aged thirty or older, compared to just one in six - S-V ERROR
(D) baby in four is now born to a mother aged thirty or older, compared with just one in six - CORRECT
(E) baby in four is now born to mothers aged thirty years or more, compared to just one in six - more YEARS?

We use “compared with” for similar objects and “compared to” for different.
Here “baby” is compared with “baby”. Therefore, “compared to” is incorrect.
Hence, B, C, and E are incorrect.
The sentence talks about “babies” being born to “one mother”. Therefore, “mothers”(plural) is incorrect. Hence, A, C, and E are incorrect.
D is the best choice.

is the ans e

compared to is better than compared with and one is indefinite pronoun can be applicable to mothers

SVA--one in four is ......A and C out
one in four babies is born to a mother (and not mothers) C and E out
D is concise and best

(D) baby in four is now born to a mother aged thirty or older, compared with just one in six
(E) baby in four is now born to mothers aged thirty years or more, compared to just one in six

if you don't know the diff b/w the usage of the two idioms then use the following 2 reasons to eliminate E.

1. mothers cant be used with a singular subject one baby. "one of four babies"
2. aged thirty years is not needed. We are already talking about the age we don't need to mention years again.

hope this helps.

a. Subject verb agreement.
b. Illogical and awkward
c. Subject verb agreement
d. Correct
e. Redundancy ( aged and years)

Here's the official explanation provided by the GMAC for this question:

This sentence compares the current proportion of babies born to mothers thirty or older with the proportion in 1975. Although the sentence is about many babies, the grammatical subject one followed by a prepositional modifier is singular and requires a singular verb form. Since presumably thirty or older is the age of the one who actually bears the child, each baby is, in this sense, born to only one mother, so mother must also be singular. The sentence must be worded appropriately to compare the current proportion of babies born to mothers thirty or older with the analogous proportion in 1975. When expressing a proportion, it is unidiomatic to use the construction one of … ; the idiomatic construction is one in … or one out of….

Option A: The grammatical subject one is singular, and therefore not in agreement with the plural are. The word years is unnecessary. English typically does not include the word years in references to age except when the years is followed by old or of age. And as worded, the sentence seems to absurdly compare the proportion of babies born to mothers thirty or older with the proportion of babies born in 1975. The construction one of … is unidiomatic when used to express a proportion. One of four babies appears to refer to one member of a specific group of four babies instead of expressing a proportion.

Option B: The phrase whose age is is unnecessarily wordy and results in the adjective older awkwardly modifying age rather than mother. The words who were are also unnecessary. As worded, the sentence seems to absurdly compare just one of only six babies born in 1975 to the current proportion of babies born to mothers thirty or older, or perhaps to just one of only four babies being born now.

Option C: The grammatical subject one baby is singular, and therefore not in agreement with the plural are.

Option D: Correct. The singular grammatical subject one baby agrees with the singular verb form is. The singular mother is also appropriate, since in the relevant sense any one baby is born to only one mother. The construction one in … is idiomatically correct. The sentence is appropriately worded to compare the current proportion of babies born to mothers thirty or older with the proportion in 1975.

Option E: With the singular subject one baby, the plural mothers makes no sense in context, since in the relevant sense any one baby is born to only one mother.

The correct answer is D.

Please note that I'm not the author of this explanation. I'm just posting it here since I believe it can help the community.