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Ramit88: Senior | Next Rank: 100 Posts; Posts: 67; Joined: Fri Nov 26, 2010 8:25 am; Thanked: 3 times

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by Ramit88 » Tue Jan 11, 2011 10:37 pm

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Source: Beat The GMAT — Sentence Correction | Tue Jan 11, 2011 10:37 pm

prachich1987: Legendary Member; Posts: 752; Joined: Sun Sep 12, 2010 2:47 am; Thanked: 20 times; Followed by:10 members; GMAT Score:700

by prachich1987 » Tue Jan 11, 2011 11:41 pm

what is the source?

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RACHVIK: Senior | Next Rank: 100 Posts; Posts: 95; Joined: Wed Sep 22, 2010 8:26 am; Thanked: 1 times; Followed by:1 members

by RACHVIK » Wed Jan 12, 2011 6:38 am

Artificial intelligence emerged during the late 1950's as an academic discipline based on the assumption that computers are able to be programmed to think like people.
(A) are able to be programmed to think like people
(B) were able to be programmed to think as people
(C) can be programmed to think as people can
(D) could be programmed to think like people
(E) are capable of being programmed to think like people do

The sentence is stating a fact that happened in past. Accordingly the verb should be all in past tense unless there is sequencing of events required. This eliminates A. [spoiler]B & E[/spoiler] are eliminated because of like/as mismatch. Between [spoiler]C & D, C[/spoiler] can be eliminated as there is no main verb for the auxiliary 'can' following 'people'.

Thanks

Rachvik

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jaymw: Master | Next Rank: 500 Posts; Posts: 144; Joined: Sun Aug 29, 2010 9:17 am; Thanked: 40 times; Followed by:4 members; GMAT Score:760

by jaymw » Wed Jan 12, 2011 8:07 am

i confused between C and D... "comp could be programmed to think" is a clause ..then how can we use like..?

The word 'like' in answer choice D isn't a problem here. It means 'similar to', which fits the intended meaning of the sentence. Robots would eventually be able to develop thought structures SIMILAR TO those of a human being.

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bblast: Legendary Member; Posts: 1077; Joined: Mon Dec 13, 2010 1:44 am; Thanked: 118 times; Followed by:33 members; GMAT Score:710

by bblast » Wed Jan 12, 2011 12:09 pm

sahil's notes uses this example to distinguish between can and could

could is applicable here because it shows prabability, can is something which is usually used in stems such as:

can i go out ?

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Target2009: Legendary Member; Posts: 574; Joined: Sat Oct 31, 2009 1:47 pm; Location: USA; Thanked: 29 times; Followed by:5 members

by Target2009 » Wed Jan 12, 2011 6:56 pm

Ramit88 wrote:Artificial intelligence emerged during the late 1950's as an academic discipline based on the assumption that computers are able to be programmed to think like people.
(A) are able to be programmed to think like people
(B) were able to be programmed to think as people
(C) can be programmed to think as people can
(D) could be programmed to think like people
(E) are capable of being programmed to think like people do

i confused between C and D... "comp could be programmed to think" is a clause ..then how can we use like..?
ans D

"People" is Compared with "computers" not with "programmed to think" So Like is fine. Also if you carefully read option C it says "compute can be programmed to think as people can be programmed to think"

This itself help to eliminate b,c, E and then A is out for tense error.
IMO D

Regards
Abhishek
------------------------------
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EducationAisle: Master | Next Rank: 500 Posts; Posts: 434; Joined: Sat Mar 27, 2010 10:42 pm; Location: Bangalore, India; Thanked: 91 times; Followed by:46 members

by EducationAisle » Thu Jan 13, 2011 5:37 am

The only way C can be grammatically written is:

Artificial intelligence emerged during the late 1950's as an academic discipline based on the assumption that computers are can be programmed to think as people can (be programmed to think).

People can be programmed to think? - This is clearly absurd. Hence, C is not the answer.

Ashish
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GMATGuruNY: GMAT Instructor; Posts: 15539; Joined: Tue May 25, 2010 12:04 pm; Location: New York, NY; Thanked: 13060 times; Followed by:1906 members; GMAT Score:790

by GMATGuruNY » Thu Jan 13, 2011 6:11 am

Ramit88 wrote:Artificial intelligence emerged during the late 1950's as an academic discipline based on the assumption that computers are able to be programmed to think like people.
(A) are able to be programmed to think like people
(B) were able to be programmed to think as people
(C) can be programmed to think as people can
(D) could be programmed to think like people
(E) are capable of being programmed to think like people do

i confused between C and D... "comp could be programmed to think" is a clause ..then how can we use like..?
ans D

One definition of the preposition like is in the manner characteristic of.
In D, computers could be programmed to think like people means that computers could be programmed to think in the manner characteristic of people.

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mundasingh123: Legendary Member; Posts: 2330; Joined: Fri Jan 15, 2010 5:14 am; Thanked: 56 times; Followed by:26 members

by mundasingh123 » Thu Jan 13, 2011 6:15 am

Could u pls reveal the source

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Ashwani: Newbie | Next Rank: 10 Posts; Posts: 1; Joined: Wed Jan 05, 2011 11:05 am

by Ashwani » Thu Jan 13, 2011 6:28 am

Ramit88 wrote:Artificial intelligence emerged during the late 1950's as an academic discipline based on the assumption that computers are able to be programmed to think like people.
(A) are able to be programmed to think like people
(B) were able to be programmed to think as people
(C) can be programmed to think as people can
(D) could be programmed to think like people
(E) are capable of being programmed to think like people do

i confused between C and D... "comp could be programmed to think" is a clause ..then how can we use like..?
ans D[/quote

if you are confused between c & d , you can compare it with"like" and "as" usage.

Like is used to compare nouns
As is used to compare verbs

that implies d is the perfect answer.

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GMATMadeEasy: Legendary Member; Posts: 768; Joined: Mon Nov 30, 2009 3:46 am; Thanked: 21 times; Followed by:7 members

by GMATMadeEasy » Thu Jan 13, 2011 6:40 am

Between "can" and "could" , which tense is correct ?

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bubbliiiiiiii: Legendary Member; Posts: 979; Joined: Tue Apr 14, 2009 1:38 am; Location: Hyderabad, India; Thanked: 49 times; Followed by:12 members; GMAT Score:700

by bubbliiiiiiii » Thu Jan 13, 2011 11:59 pm

GMATMadeEasy wrote:Between "can" and "could" , which tense is correct ?

Could is more appropriate in this case because we are dealing iwth assumptions. An assumption can properly take could. If it would hace taked can then we are somehow confirming the assumption which is inappropriate.

Experts opinion please.

Regards,

Pranay