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Though the Pythagorean theorem is attributed to Pythagoras, a mathematician and philosopher who lived in the 6th century BC, the first proof had not been completed before the year 300 BC, when it appeared in Euclid’s Elements.
A. the first proof had not been completed before the year
B. it had not been proven to be true before the year
C. the first proof of the theorem was not completed prior to
D. the first proof was not completed until
E. it was not proven to be true prior to
Source: 800 Test
A. the first proof had not been completed before the year
B. it had not been proven to be true before the year
C. the first proof of the theorem was not completed prior to
D. the first proof was not completed until
E. it was not proven to be true prior to
Source: 800 Test
27 May 2013, 07:43
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Though the Pythagorean theorem is attributed to Pythagoras, a mathematician and philosopher who lived in the 6th century BC, the first proof had not been completed before the year 300 BC, when it appeared in Euclid’s Elements.
Pay attention to the last part of the sentence: it' s a modifier. "when it appeared in Euclid’s Elements" what should modify? The proof that appeared in Euclid's Elements.
So in the underlined part we must have the "proof" (otherwise that modifier makes no sense)
B. it had not been proven to be true before the year
E. it was not proven to be true prior to
Out B and E that do not have "proof". We are left with A C and D.
A. the first proof had not been completed before the year
The past perfect must express an action that happened for a long period of time,this is not the case. Out A
C. the first proof of the theorem was not completed prior to
D. the first proof was not completed until
Between C and D, D is the better chioce. D is more coincise (clearly) and C uses "prior to" (not an error by itself, but "until" is preferred)
Pay attention to the last part of the sentence: it' s a modifier. "when it appeared in Euclid’s Elements" what should modify? The proof that appeared in Euclid's Elements.
So in the underlined part we must have the "proof" (otherwise that modifier makes no sense)
B. it had not been proven to be true before the year
E. it was not proven to be true prior to
Out B and E that do not have "proof". We are left with A C and D.
A. the first proof had not been completed before the year
The past perfect must express an action that happened for a long period of time,this is not the case. Out A
C. the first proof of the theorem was not completed prior to
D. the first proof was not completed until
Between C and D, D is the better chioce. D is more coincise (clearly) and C uses "prior to" (not an error by itself, but "until" is preferred)
blueseas
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27 May 2013, 07:51
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Zarrolou
Though the Pythagorean theorem is attributed to Pythagoras, a mathematician and philosopher who lived in the 6th century BC, the first proof had not been completed before the year 300 BC, when it appeared in Euclid’s Elements.
Pay attention to the last part of the sentence: it' s a modifier. "when it appeared in Euclid’s Elements" what should modify? The proof that appeared in Euclid's Elements.
So in the underlined part we must have the "proof" (otherwise that modifier makes no sense)
B. it had not been proven to be true before the year
E. it was not proven to be true prior to
Out B and E that do not have "proof". We are left with A C and D.
A. the first proof had not been completed before the year
The past perfect must express an action that happened for a long period of time,this is not the case. Out A
C. the first proof of the theorem was not completed prior to
D. the first proof was not completed until
Between C and D, D is the better chioce. D is more coincise (clearly) and C uses "prior to" (not an error by itself, but "until" is preferred)
Pay attention to the last part of the sentence: it' s a modifier. "when it appeared in Euclid’s Elements" what should modify? The proof that appeared in Euclid's Elements.
So in the underlined part we must have the "proof" (otherwise that modifier makes no sense)
B. it had not been proven to be true before the year
E. it was not proven to be true prior to
Out B and E that do not have "proof". We are left with A C and D.
A. the first proof had not been completed before the year
The past perfect must express an action that happened for a long period of time,this is not the case. Out A
C. the first proof of the theorem was not completed prior to
D. the first proof was not completed until
Between C and D, D is the better chioce. D is more coincise (clearly) and C uses "prior to" (not an error by itself, but "until" is preferred)
hi ,
even myself also chose D after eliminating A B E.
You mean to say if in option C we have until instead of prior to then also option D is correct because it is concise.
but as per my understanding option C's wording is more clear: the first proof of the theorem rather in option D Proof of what? it is not clear.
please suggest if i am wrong.
SKM
also until is prefered over prior to ===> is that GMAT preference you mean.
