Sentence Correction

Rock samples taken from the remains of an asteroid about twice the size of the 6 mile wide asteroid that eradicated the dinosaurs has been dated to be 3.47 billion years old and thus is evidence of the earliest known asteroid impact on Earth

A ) Same

B) has been dated at 3.47 billion years old and thus

C) have been dated to be 3.47 billion years old and thus are

D) have been dated as being 3.47 billion years old and thus

E) have been dated at 3.47 billion years old and thus are


Normally experts say
estimated at should be followed by an noun
e.g: the temperature is estimated at negative five hundred degrees
and estimated to be should be followed by non nouns(such as adjectives)
e.g the fossil is estimated to be 500 years old
THEN WHY ARE WE CHOOSING E OVER C?
why would dated and estimated be polar opposites??

lunarpower wrote:

souvik101990 wrote:Rock samples taken from the remains of an asteroid about twice the size of the 6 mile wide asteroid that eradicated the dinosaurs has been dated to be 3.47 billion years old and thus is evidence of the earliest known asteroid impact on Earth

A ) Same

B) has been dated at 3.47 billion years old and thus

C) have been dated to be 3.47 billion years old and thus are

D) have been dated as being 3.47 billion years old and thus

E) have been dated at 3.47 billion years old and thus are


Normally experts say
estimated at should be followed by an noun
e.g: the temperature is estimated at negative five hundred degrees
and estimated to be should be followed by non nouns(such as adjectives)
e.g the fossil is estimated to be 500 years old
THEN WHY ARE WE CHOOSING E OVER C?
why would dated and estimated be polar opposites??

i guess this is just a random idiomatic exception.

the good news is that the current incarnation of the gmat has largely moved away from testing pure idioms, especially when they have no effect on the surrounding grammar or context and when they aren't part of any larger construction (such as a parallel structure). therefore, the likelihood that you'll see something like this on your actual gmat exam is extremely low.

ron,
although this concept is purely based on idiomatic constructions, i am somewhat surprised to see idiomatic construction violating grammar rule:object of preposition must be noun/pronoun. am i missing something

similar point -OG12 #27- https://www.beatthegmat.com/estimated-at ... tml#458297
does it mean:
a)estimated at adjective - wrong ... used to eliminate an option in OG12 #27
b)dated at adjective - correct ... used in correct option OG12 #78

Thanks for being so extremely prompt!
oh there you go with a non-redundant being
I feel sad for the word

lunarpower wrote:

souvik101990 wrote:Rock samples taken from the remains of an asteroid about twice the size of the 6 mile wide asteroid that eradicated the dinosaurs has been dated to be 3.47 billion years old and thus is evidence of the earliest known asteroid impact on Earth

A ) Same

B) has been dated at 3.47 billion years old and thus

C) have been dated to be 3.47 billion years old and thus are

D) have been dated as being 3.47 billion years old and thus

E) have been dated at 3.47 billion years old and thus are


Normally experts say
estimated at should be followed by an noun
e.g: the temperature is estimated at negative five hundred degrees
and estimated to be should be followed by non nouns(such as adjectives)
e.g the fossil is estimated to be 500 years old
THEN WHY ARE WE CHOOSING E OVER C?
why would dated and estimated be polar opposites??

i guess this is just a random idiomatic exception.

the good news is that the current incarnation of the gmat has largely moved away from testing pure idioms, especially when they have no effect on the surrounding grammar or context and when they aren't part of any larger construction (such as a parallel structure). therefore, the likelihood that you'll see something like this on your actual gmat exam is extremely low.

One more question confirming to above discussion, OA:E

Historians claim that shards of an enormous Pelasgian urn discovered in Eastern Greece and estimated at 2,600 to 2,900 years old provide evidence of a flowering civilization that pre-dated and probably influenced Classical Greece.

(A) at 2,600 to 2,900 years old provide evidence of

(B) that it is 2,600 to 2,900 years old provides evidence of

(C) as being 2,600 to 2,900 years old provides evidence of what was

(D) as 2,600 to 2,900 years old provides evidence of what was

(E) to be 2,600 to 2,900 years old provide evidence of