GMAT 逻辑分析题 (15)

放肆的小狂可 · 发表于 2011-10-26 23:45:29

Oh, I see.... So we can't just find the answer which seems to be no problem in logic, we must think about the real topic and the core point

无敌西红柿炒蛋 · 发表于 2011-11-2 16:17:39

顶上去

nobody910 · 发表于 2012-2-16 18:42:41

Dear SDCAR, having read this question for serveral times, I still believe E is sound.

Since E states that if a bill gets passed, then there is at least one supporter. If we conversenegate E, we will get "if none of the leaders support the bill, then the bill will not get passed", which parallels the argument.

I do not doubt the correctness of C, but I also think E provides a solid support for the conclusion.

sdcar2010 · 发表于 2012-2-16 20:08:48

Dear SDCAR, having read this question for serveral times, I still believe E is sound.

Since E states that if a bill gets passed, then there is at least one supporter. If we conversenegate E, we will get "if none of the leaders support the bill, then the bill will not get passed", which parallels the argument.

I do not doubt the correctness of C, but I also think E provides a solid support for the conclusion.

-- by 会员 nobody910 (2012/2/16 18:42:41)

Good questions. Let's do an analysis of the answer choice E).
E) Most bills at the National People’s Congress, which have been passed into law, were supported by at least one leader of the ruling party.

Your analysis is ALMOST right, except that you forgot that there is a modifier MOST in the argument. When there is a modifier of MORE, MOST, LESS, LEAST in an statement, generally speaking there is NO contrapositive statement thereof. This is simply the nature of logics which require a clearcut line of YES or NO.

Therefore, we can ONLY use the answer choices in their NORMAL way of saying.

nobody910 · 发表于 2012-2-16 22:46:24

Dear SDCAR, having read this question for serveral times, I still believe E is sound.

Since E states that if a bill gets passed, then there is at least one supporter. If we conversenegate E, we will get "if none of the leaders support the bill, then the bill will not get passed", which parallels the argument.

I do not doubt the correctness of C, but I also think E provides a solid support for the conclusion.

-- by 会员 nobody910 (2012/2/16 18:42:41)

Good questions. Let's do an analysis of the answer choice E).
E) Most bills at the National People’s Congress, which have been passed into law, were supported by at least one leader of the ruling party.

Your analysis is ALMOST right, except that you forgot that there is a modifier MOST in the argument. When there is a modifier of MORE, MOST, LESS, LEAST in an statement, generally speaking there is NO contrapositive statement thereof. This is simply the nature of logics which require a clearcut line of YES or NO.

Therefore, we can ONLY use the answer choices in their NORMAL way of saying.

-- by 会员 sdcar2010 (2012/2/16 20:08:48)

I see. Thanks so much for pointing it out.

livebelieve · 发表于 2016-11-5 19:44:02

两句型，所以选一个和第二句相关的。答案否定的有限考虑，所以选了C

GMAT 逻辑分析题 (15)

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