The Acoma and Hopi are probably the two

[CrystalSpringston]

The Summer palace is dated at 300 years.
——its age is 300 years.

here the usage is more specific.

'has been dated' means that some person (presumably an expert) has estimated the age of something.

also, with this meaning ^^ you should note that the present tense doesn't (and can't) work.

'has been dated at' is a point action. (people made an estimate at one specific point in time.)
• it can't be 'ongoing'.
• it can't be 'true in general', either (since it is one person's estimate).

so, 'is dated at' won't work.



see here:
https://www.manhattanprep.com/gmat/foru ... ml#p100119

Thanks Ron. It helps a lot!

[RonPurewal]

you're welcome.

[aflaamM589]

Ron , you said even if both is replaced with each in correct answer choice, it will still be correct.
My question is if we drop both in choice A, will it still be correct, dating goes back to subject and demonstrates the fact of preceding clause further in detail?

The Acoma and Hopi are probably the two oldest surviving Pueblo communities, dating back at least a thousand years.
Thanks,

[RonPurewal]

also workable, yes.

[aflaamM589]

Thanks, another question from your earlier post.

The Acoma and Hopi are probably the two oldest surviving Pueblo communities, both dating back at least a thousand years.
A. both dating
B. both of which have dated
C. and each has dated
D. and each one dating
E. each one of which date
from prep
OA is A

can you tell me "both" vs."each" as a split ?
please explain why each choice is correct / incorrect

that's not actually a split; if you were to replace "both" with "each" in the correct answer, you would have another correct answer.

But the meaning will be different, right Ron?
i.e
i)The Acoma and Hopi are probably the two oldest surviving Pueblo communities, both dating back at least a thousand years
ii)The Acoma and Hopi are probably the two oldest surviving Pueblo communities, dating back at least a thousand years
iii)The Acoma and Hopi are probably the two oldest surviving Pueblo communities, each dating back at least a thousand years
In i and ii, dating applies to The Acoma and Hopi
in iii, whereas, dating applies to communities, right Ron?
Thanks

[RonPurewal]

the acoma and hopi are the communities, so there is no difference.