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Fossilized remains of a horn though to be of

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Manager
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G
Joined: 15 Mar 2014
Posts: 127

Kudos [?]: 47 [0], given: 2

Location: India
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WE: Operations (Telecommunications)
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Fossilized remains of a horn though to be of [#permalink]

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New post 16 Apr 2017, 00:40
3
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A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

56% (00:40) correct 44% (00:56) wrong based on 99 sessions

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Source: Ready4GMAT

Fossilized remains of a horn thought to be of a triceratops found in sedimentary rock in 2011 has been dated to be 65.5 million years old and thus is evidence that dinosaurs existed shortly before the asteroid impact that is believed to have made them extinct.

A) has been dated to be 65.5 million years old and thus is
B) has been dated at 65.5 million years old and thus
C) have been dated to be 65.5 million years old and thus are
D) have been dated as being 65.5 million years old and thus
E) have been dated at 65.5 million years old and thus are
[Reveal] Spoiler: OA

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Joined: 18 Jan 2017
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Kudos [?]: 68 [0], given: 371

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Re: Fossilized remains of a horn though to be of [#permalink]

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New post 16 Apr 2017, 01:15
Fossilized remains of a horn thought to be of a triceratops found in sedimentary rock in 2011 has been dated to be 65.5 million years old and thus is evidence that dinosaurs existed shortly before the asteroid impact that is believed to have made them extinct

The following are the errors tested in the above stem:-
1) The subject of the underlined portion is "Remains"; since this a plural subject the verb has to be plural. Thus "Has" should be replaced with "Have" AND "is" with "are"
2) According to GMAT, the correct idiom is "dated at" and not "dated to be"

Ans-E

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Joined: 24 Oct 2016
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Concentration: Finance, International Business
Schools: IIMB
GMAT 1: 550 Q42 V28
GPA: 3.96
WE: Human Resources (Retail Banking)
Re: Fossilized remains of a horn though to be of [#permalink]

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New post 17 Apr 2017, 04:59
correct answer is E
fossilized remains = plural so have , A and B are out .
correct idiom is date from/dated at not dated to be, so C and D are out ,left with E only as correct answer.

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Re: Fossilized remains of a horn though to be of   [#permalink] 17 Apr 2017, 04:59
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Fossilized remains of a horn though to be of

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